131222210132 has 36 divisors (see below), whose sum is σ = 258523264020. Its totient is φ = 57930863232.

The previous prime is 131222210111. The next prime is 131222210143. The reversal of 131222210132 is 231012222131.

It can be written as a sum of positive squares in 2 ways, for example, as 78195173956 + 53027036176 = 279634^2 + 230276^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2357657 + ... + 2412672.

Almost surely, 2^131222210132 is an apocalyptic number.

It is an amenable number.

131222210132 is a deficient number, since it is larger than the sum of its proper divisors (127301053888).

131222210132 is a wasteful number, since it uses less digits than its factorization.

131222210132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4770392 (or 4770367 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 131222210132 its reverse (231012222131), we get a palindrome (362234432263).

The spelling of 131222210132 in words is "one hundred thirty-one billion, two hundred twenty-two million, two hundred ten thousand, one hundred thirty-two".