131222157378024 has 64 divisors (see below), whose sum is σ = 332010563351040. Its totient is φ = 43213371696320.

The previous prime is 131222157377953. The next prime is 131222157378029. The reversal of 131222157378024 is 420873751222131.

It is not an unprimeable number, because it can be changed into a prime (131222157378029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383103559 + ... + 383445929.

It is an arithmetic number, because the mean of its divisors is an integer number (5187665052360).

Almost surely, 2^{131222157378024} is an apocalyptic number.

It is an amenable number.

131222157378024 is an abundant number, since it is smaller than the sum of its proper divisors (200788405973016).

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

131222157378024 is a wasteful number, since it uses less digits than its factorization.

131222157378024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534870 (or 534866 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 131222157378024 in words is "one hundred thirty-one trillion, two hundred twenty-two billion, one hundred fifty-seven million, three hundred seventy-eight thousand, twenty-four".