131021222400204 has 48 divisors (see below), whose sum is σ = 305998717664640. Its totient is φ = 43633393372800.

The previous prime is 131021222400181. The next prime is 131021222400283. The reversal of 131021222400204 is 402004222120131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72660427 + ... + 74441789.

It is an arithmetic number, because the mean of its divisors is an integer number (6374973284680).

Almost surely, 2^{131021222400204} is an apocalyptic number.

It is an amenable number.

131021222400204 is an abundant number, since it is smaller than the sum of its proper divisors (174977495264436).

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

131021222400204 is a wasteful number, since it uses less digits than its factorization.

131021222400204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787030 (or 1787028 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 131021222400204 its reverse (402004222120131), we get a palindrome (533025444520335).

The spelling of 131021222400204 in words is "one hundred thirty-one trillion, twenty-one billion, two hundred twenty-two million, four hundred thousand, two hundred four".