131222333220400 has 60 divisors (see below), whose sum is σ = 315291808233400. Its totient is φ = 52483913072640.

The previous prime is 131222333220397. The next prime is 131222333220401. The reversal of 131222333220400 is 4022333222131.

It is not an unprimeable number, because it can be changed into a prime (131222333220401) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 11499345 + ... + 19866544.

Almost surely, 2^{131222333220400} is an apocalyptic number.

131222333220400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131222333220400 is an abundant number, since it is smaller than the sum of its proper divisors (184069475013000).

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

131222333220400 is a wasteful number, since it uses less digits than its factorization.

131222333220400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31376366 (or 31376355 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 131222333220400 its reverse (4022333222131), we get a palindrome (135244666442531).

The spelling of 131222333220400 in words is "one hundred thirty-one trillion, two hundred twenty-two billion, three hundred thirty-three million, two hundred twenty thousand, four hundred".