210101122122 has 32 divisors (see below), whose sum is σ = 432140234112. Its totient is φ = 68049140544.

The previous prime is 210101122111. The next prime is 210101122157. The reversal of 210101122122 is 221221101012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471933 + ... + 801824.

It is an arithmetic number, because the mean of its divisors is an integer number (13504382316).

Almost surely, 2^210101122122 is an apocalyptic number.

210101122122 is an abundant number, since it is smaller than the sum of its proper divisors (222039111990).

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

210101122122 is a wasteful number, since it uses less digits than its factorization.

210101122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274542.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 210101122122 its reverse (221221101012), we get a palindrome (431322223134).

The spelling of 210101122122 in words is "two hundred ten billion, one hundred one million, one hundred twenty-two thousand, one hundred twenty-two".