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222201012201220 = 225137603911239223
BaseRepresentation
bin110010100001011100110100…
…011001101010011100000100
31002010202012122120212020201201
4302201130310121222130010
5213111020133110414340
62104325422533432244
764542331136350453
oct6241346431523404
91063665576766651
10222201012201220
1164888a1368a0a8
1220b0806549b684
1396ca608a45a80
143cc282d018b9a
151aa4e5916879a
hexca173466a704

222201012201220 has 48 divisors (see below), whose sum is σ = 502522788660480. Its totient is φ = 82042364393856.

The previous prime is 222201012201121. The next prime is 222201012201229. The reversal of 222201012201220 is 22102210102222.

It is not an unprimeable number, because it can be changed into a prime (222201012201229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14150529 + ... + 25389751.

It is an arithmetic number, because the mean of its divisors is an integer number (10469224763760).

Almost surely, 2222201012201220 is an apocalyptic number.

222201012201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222201012201220 is an abundant number, since it is smaller than the sum of its proper divisors (280321776459260).

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

222201012201220 is a wasteful number, since it uses less digits than its factorization.

222201012201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11315284 (or 11315282 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222201012201220 its reverse (22102210102222), we get a palindrome (244303222303442).

The spelling of 222201012201220 in words is "two hundred twenty-two trillion, two hundred one billion, twelve million, two hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 76039 152078 304156 380195 760390 988507 1520780 1977014 3954028 4942535 9885070 11239223 19770140 22478446 44956892 56196115 112392230 146109899 224784460 292219798 584439596 730549495 1461098990 2922197980 854619277697 1709238555394 3418477110788 4273096388485 8546192776970 11110050610061 17092385553940 22220101220122 44440202440244 55550253050305 111100506100610 222201012201220