122131131100 has 72 divisors (see below), whose sum is σ = 292366443600. Its totient is φ = 43912281600.

The previous prime is 122131131049. The next prime is 122131131103. The reversal of 122131131100 is 1131131221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122131131103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 525855 + ... + 721654.

It is an arithmetic number, because the mean of its divisors is an integer number (4060645050).

Almost surely, 2^122131131100 is an apocalyptic number.

122131131100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122131131100 is an abundant number, since it is smaller than the sum of its proper divisors (170235312500).

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

122131131100 is a wasteful number, since it uses less digits than its factorization.

122131131100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247623 (or 1247616 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 122131131100 its reverse (1131131221), we get a palindrome (123262262321).

The spelling of 122131131100 in words is "one hundred twenty-two billion, one hundred thirty-one million, one hundred thirty-one thousand, one hundred".