22121102010210 has 32 divisors (see below), whose sum is σ = 60675022657152. Its totient is φ = 5056251888000.

The previous prime is 22121102010187. The next prime is 22121102010251. The reversal of 22121102010210 is 1201020112122.

It is a super-2 number, since 2×22121102010210² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22121102010210.

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, 52669290291 + ... + 52669290710.

It is an arithmetic number, because the mean of its divisors is an integer number (1896094458036).

Almost surely, 2^{22121102010210} is an apocalyptic number.

22121102010210 is an abundant number, since it is smaller than the sum of its proper divisors (38553920646942).

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

22121102010210 is a wasteful number, since it uses less digits than its factorization.

22121102010210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105338581018.

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

Adding to 22121102010210 its reverse (1201020112122), we get a palindrome (23322122122332).

The spelling of 22121102010210 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred two million, ten thousand, two hundred ten".