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12200213121220 = 2252943736701131
BaseRepresentation
bin1011000110001001010101…
…0111101000100011000100
31121012022212211101110122101
42301202111113220203010
53044342014024334340
641540411152041444
72366302440323125
oct261422527504304
947168784343571
1012200213121220
113984099280143
121450596833284
136a6623c0b497
143026ca0da04c
1516254ee41c9a
hexb18955e88c4

12200213121220 has 96 divisors (see below), whose sum is σ = 27491796097920. Its totient is φ = 4539184634880.

The previous prime is 12200213121209. The next prime is 12200213121221. The reversal of 12200213121220 is 2212131200221.

It is not an unprimeable number, because it can be changed into a prime (12200213121221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1529946 + ... + 5171185.

It is an arithmetic number, because the mean of its divisors is an integer number (286372876020).

Almost surely, 212200213121220 is an apocalyptic number.

12200213121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12200213121220 is an abundant number, since it is smaller than the sum of its proper divisors (15291582976700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12200213121220 is a wasteful number, since it uses less digits than its factorization.

12200213121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6701285 (or 6701283 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12200213121220 its reverse (2212131200221), we get a palindrome (14412344321441).

The spelling of 12200213121220 in words is "twelve trillion, two hundred billion, two hundred thirteen million, one hundred twenty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 29 43 58 73 86 116 145 146 172 215 290 292 365 430 580 730 860 1247 1460 2117 2494 3139 4234 4988 6235 6278 8468 10585 12470 12556 15695 21170 24940 31390 42340 62780 91031 182062 364124 455155 910310 1820620 6701131 13402262 26804524 33505655 67011310 134022620 194332799 288148633 388665598 489182563 576297266 777331196 971663995 978365126 1152594532 1440743165 1943327990 1956730252 2445912815 2881486330 3886655980 4891825630 5762972660 8356310357 9783651260 14186294327 16712620714 21034850209 28372588654 33425241428 41781551785 42069700418 56745177308 70931471635 83563103570 84139400836 105174251045 141862943270 167126207140 210348502090 283725886540 420697004180 610010656061 1220021312122 2440042624244 3050053280305 6100106560610 12200213121220