131220332022 has 32 divisors (see below), whose sum is σ = 282714018048. Its totient is φ = 40363256736.

The previous prime is 131220331999. The next prime is 131220332053. The reversal of 131220332022 is 220233022131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 131220332022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6063 + ... + 512325.

It is an arithmetic number, because the mean of its divisors is an integer number (8834813064).

Almost surely, 2^131220332022 is an apocalyptic number.

131220332022 is an abundant number, since it is smaller than the sum of its proper divisors (151493686026).

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

131220332022 is a wasteful number, since it uses less digits than its factorization.

131220332022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509604.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 131220332022 its reverse (220233022131), we get a palindrome (351453354153).

The spelling of 131220332022 in words is "one hundred thirty-one billion, two hundred twenty million, three hundred thirty-two thousand, twenty-two".