210122211120012 has 72 divisors (see below), whose sum is σ = 551186115519312. Its totient is φ = 69993443692800.

The previous prime is 210122211119999. The next prime is 210122211120061. The reversal of 210122211120012 is 210021112221012.

210122211120012 is a `hidden beast` number, since 210 + 12 + 221 + 11 + 200 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71543289 + ... + 74422352.

It is an arithmetic number, because the mean of its divisors is an integer number (7655362715546).

Almost surely, 2^{210122211120012} is an apocalyptic number.

It is an amenable number.

210122211120012 is an abundant number, since it is smaller than the sum of its proper divisors (341063904399300).

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

210122211120012 is a wasteful number, since it uses less digits than its factorization.

210122211120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145967141 (or 145967127 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 210122211120012 its reverse (210021112221012), we get a palindrome (420143323341024).

The spelling of 210122211120012 in words is "two hundred ten trillion, one hundred twenty-two billion, two hundred eleven million, one hundred twenty thousand, twelve".