21331222323110 has 64 divisors (see below), whose sum is σ = 43948832256000. Its totient is φ = 7302324953472.

The previous prime is 21331222323109. The next prime is 21331222323127. The reversal of 21331222323110 is 1132322213312.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21331222323110.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 162981176 + ... + 163112004.

It is an arithmetic number, because the mean of its divisors is an integer number (686700504000).

Almost surely, 2^{21331222323110} is an apocalyptic number.

21331222323110 is an abundant number, since it is smaller than the sum of its proper divisors (22617609932890).

21331222323110 is a wasteful number, since it uses less digits than its factorization.

21331222323110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134405.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 21331222323110 its reverse (1132322213312), we get a palindrome (22463544536422).

The spelling of 21331222323110 in words is "twenty-one trillion, three hundred thirty-one billion, two hundred twenty-two million, three hundred twenty-three thousand, one hundred ten".