131221302041122 has 32 divisors (see below), whose sum is σ = 208459479346560. Its totient is φ = 61736632047360.

The previous prime is 131221302041111. The next prime is 131221302041131. The reversal of 131221302041122 is 221140203122131.

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, 4555173643 + ... + 4555202449.

It is an arithmetic number, because the mean of its divisors is an integer number (6514358729580).

Almost surely, 2^{131221302041122} is an apocalyptic number.

131221302041122 is a deficient number, since it is larger than the sum of its proper divisors (77238177305438).

131221302041122 is a wasteful number, since it uses less digits than its factorization.

131221302041122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55786.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 131221302041122 its reverse (221140203122131), we get a palindrome (352361505163253).

The spelling of 131221302041122 in words is "one hundred thirty-one trillion, two hundred twenty-one billion, three hundred two million, forty-one thousand, one hundred twenty-two".