It's about 800,000,000 times as big as a Tennis court
In other words, 213,096,000 dunams is 816,861,190 times the size of a Tennis court, and the size of a Tennis court is 0.00000000122419820 times that amount.(per ITF specification; for doubles)
Per International Tennis Federation Rules of Tennis 2009, a doubles tennis court should measure 23.7744 m long by 10.9728 m, for a total area of about 0.260760 dunams. Courts may be surfaced with crushed red stone, shale, brick, hard-soil grass, or asphalt.
It's about 15,000,000,000 times as big as a Parking Space
In other words, 213,096,000 dunams is 14,200,000,000 times the size of a Parking Space, and the size of a Parking Space is 0.00000000007040 times that amount.(a.k.a Parking Stall) (average; surface lot; North America)
An average-size parking space in a North American surface lot measures 0.015 dunams. Due to the high real estate prices at the time, parking spaces in a densely-populated part of Manhattan would sell for an average of $165,000 in 2007, with some spaces fetching up to $225,000.
It's about 55,000,000,000 times as big as a King Size Bed
In other words, 213,096,000 dunams is 52,900,000,000 times the size of a King Size Bed, and the size of a King Size Bed is 0.00000000001890 times that amount.(North American/Australian standard; length; mattress only)
A King-Size mattress measures 0.00403 dunams in total area. Although most antique beds were smaller than modern beds, it was not uncommon for beds in the medieval Europe to reach 0.005 dunams for those in positions of wealth or power.
It's about 200,000,000,000 times as big as a Bath Towel
In other words, 213,096,000 dunams is 196,620,000,000 times the size of a Bath Towel, and the size of a Bath Towel is 0.0000000000050860 times that amount.(for Fieldcrest Luxury Solid Towels)
Bath towels typically measure 142.24 cm (56 in) by 76.2 cm (30 in), for a total area of about 0.0010838 dunams. The city of Bursa, Turkey is known as the birthplace of the modern towel.
It's about 2,000,000,000,000 times as big as an Airplane Tray Table
In other words, 213,096,000 dunams is 2,110,000,000,000 times the size of an Airplane Tray Table, and the size of an Airplane Tray Table is 0.0000000000004740 times that amount.(average)
With wide variation among different models of airplanes, in-flight tray tables measure around 41.2 cm (16.5 in) x 24.1 cm (9.5 in) for a total area of 0.000101 dunams. Flight safety rules require that the tray tables be upright and locked during takeoff and landing so as to reduce the risk of passenger abdominal injury.
It's about 5,500,000,000,000 times as big as an Apple iPad
In other words, 213,096,000 dunams is 5,325,000,000,000 times the size of an Apple iPad, and the size of an Apple iPad is 0.00000000000018780 times that amount.(for 9.7 inch, Apple iPad Air MD785LL/B)
An Apple iPad measures 23 cm (9.4 in) x 17 cm (6.6 in) for a total device area of 0.000040020 dunams. The base model iPad Air features 16 GB of storage capacity.
It's about 40,000,000,000,000 times as big as a Playing Card
In other words, 213,096,000 dunams is 38,000,000,000,000 times the size of a Playing Card, and the size of a Playing Card is 0.0000000000000260 times that amount.(ISO 216 B8 size)
A single ISO 216 B8-size playing card measures 0.00000560 dunams. Although this size is the most common playing card, many casinos use the smaller "bridge size" card — 0.00000260 dunams smaller.