131220023221322 has 24 divisors (see below), whose sum is σ = 231188517252576. Its totient is φ = 55691161030008.

The previous prime is 131220023221303. The next prime is 131220023221381. The reversal of 131220023221322 is 223122320022131.

It is a junction number, because it is equal to n+sod(n) for n = 131220023221291 and 131220023221300.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6499891988 + ... + 6499912175.

It is an arithmetic number, because the mean of its divisors is an integer number (9632854885524).

Almost surely, 2^{131220023221322} is an apocalyptic number.

131220023221322 is a deficient number, since it is larger than the sum of its proper divisors (99968494031254).

131220023221322 is a wasteful number, since it uses less digits than its factorization.

131220023221322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12999804282 (or 12999804275 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 131220023221322 its reverse (223122320022131), we get a palindrome (354342343243453).

The spelling of 131220023221322 in words is "one hundred thirty-one trillion, two hundred twenty billion, twenty-three million, two hundred twenty-one thousand, three hundred twenty-two".