122131123320 has 64 divisors (see below), whose sum is σ = 382323525120. Its totient is φ = 31152285824.

The previous prime is 122131123319. The next prime is 122131123337. The reversal of 122131123320 is 23321131221.

It is a super-2 number, since 2×122131123320² (a number of 23 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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22122444 + ... + 22127963.

It is an arithmetic number, because the mean of its divisors is an integer number (5973805080).

Almost surely, 2^122131123320 is an apocalyptic number.

122131123320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122131123320 is an abundant number, since it is smaller than the sum of its proper divisors (260192401800).

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

122131123320 is a wasteful number, since it uses less digits than its factorization.

122131123320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44250444 (or 44250440 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 122131123320 its reverse (23321131221), we get a palindrome (145452254541).

The spelling of 122131123320 in words is "one hundred twenty-two billion, one hundred thirty-one million, one hundred twenty-three thousand, three hundred twenty".