331012122100 has 72 divisors (see below), whose sum is σ = 829689896448. Its totient is φ = 113287564800.

The previous prime is 331012122073. The next prime is 331012122107. The reversal of 331012122100 is 1221210133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331012122107) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 8831892 + ... + 8869291.

It is an arithmetic number, because the mean of its divisors is an integer number (11523470784).

Almost surely, 2^331012122100 is an apocalyptic number.

It is an amenable number.

331012122100 is an abundant number, since it is smaller than the sum of its proper divisors (498677774348).

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

331012122100 is a wasteful number, since it uses less digits than its factorization.

331012122100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17701225 (or 17701218 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 331012122100 its reverse (1221210133), we get a palindrome (332233332233).

The spelling of 331012122100 in words is "three hundred thirty-one billion, twelve million, one hundred twenty-two thousand, one hundred".