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122012212102212 = 223239187722665217
BaseRepresentation
bin11011101111100000101110…
…100011111000010001000100
3121000000020211211211221210110
4123233200232203320101010
5111443022002244232322
61111255345245353020
734462043233636605
oct3357405643702104
9530006754757713
10122012212102212
11359710a7975153
121182694ab68770
135310918a59513
14221b5cb78ddac
15e18c3e7edc0c
hex6ef82e8f8444

122012212102212 has 48 divisors (see below), whose sum is σ = 286038677594880. Its totient is φ = 40478987845632.

The previous prime is 122012212102177. The next prime is 122012212102237. The reversal of 122012212102212 is 212201212210221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5949373 + ... + 16715844.

It is an arithmetic number, because the mean of its divisors is an integer number (5959139116560).

Almost surely, 2122012212102212 is an apocalyptic number.

122012212102212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122012212102212 is an abundant number, since it is smaller than the sum of its proper divisors (164026465492668).

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

122012212102212 is a wasteful number, since it uses less digits than its factorization.

122012212102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22667340 (or 22667338 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 122012212102212 its reverse (212201212210221), we get a palindrome (334213424312433).

The spelling of 122012212102212 in words is "one hundred twenty-two trillion, twelve billion, two hundred twelve million, one hundred two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 239 478 717 956 1434 1877 2868 3754 5631 7508 11262 22524 448603 897206 1345809 1794412 2691618 5383236 22665217 45330434 67995651 90660868 135991302 271982604 5416986863 10833973726 16250960589 21667947452 32501921178 42542612309 65003842356 85085224618 127627836927 170170449236 255255673854 510511347708 10167684341851 20335368683702 30503053025553 40670737367404 61006106051106 122012212102212