131440221022 has 32 divisors (see below), whose sum is σ = 220977745920. Its totient is φ = 58109582880.

The previous prime is 131440221007. The next prime is 131440221047. The reversal of 131440221022 is 220122044131.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 131440220984 and 131440221002.

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, 2315463 + ... + 2371549.

It is an arithmetic number, because the mean of its divisors is an integer number (6905554560).

Almost surely, 2^131440221022 is an apocalyptic number.

131440221022 is a deficient number, since it is larger than the sum of its proper divisors (89537524898).

131440221022 is a wasteful number, since it uses less digits than its factorization.

131440221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59016.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 131440221022 its reverse (220122044131), we get a palindrome (351562265153).

The spelling of 131440221022 in words is "one hundred thirty-one billion, four hundred forty million, two hundred twenty-one thousand, twenty-two".