22121022110 has 64 divisors (see below), whose sum is σ = 45615757824. Its totient is φ = 7645123200.

The previous prime is 22121022107. The next prime is 22121022139. The reversal of 22121022110 is 1122012122.

It is a super-2 number, since 2×22121022110² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 369365 + ... + 425055.

It is an arithmetic number, because the mean of its divisors is an integer number (712746216).

Almost surely, 2^22121022110 is an apocalyptic number.

22121022110 is an abundant number, since it is smaller than the sum of its proper divisors (23494735714).

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

22121022110 is a wasteful number, since it uses less digits than its factorization.

22121022110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55889.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22121022110 its reverse (1122012122), we get a palindrome (23243034232).

The spelling of 22121022110 in words is "twenty-two billion, one hundred twenty-one million, twenty-two thousand, one hundred ten".