131031204222 has 16 divisors (see below), whose sum is σ = 262391229072. Its totient is φ = 43622264640.

The previous prime is 131031204221. The next prime is 131031204253. The reversal of 131031204222 is 222402130131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131031204221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13695679 + ... + 13705242.

It is an arithmetic number, because the mean of its divisors is an integer number (16399451817).

Almost surely, 2^131031204222 is an apocalyptic number.

131031204222 is an abundant number, since it is smaller than the sum of its proper divisors (131360024850).

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

131031204222 is a wasteful number, since it uses less digits than its factorization.

131031204222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27401723.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 131031204222 its reverse (222402130131), we get a palindrome (353433334353).

The spelling of 131031204222 in words is "one hundred thirty-one billion, thirty-one million, two hundred four thousand, two hundred twenty-two".