131224355002225 has 12 divisors (see below), whose sum is σ = 162767493913180. Its totient is φ = 104947681608000.

The previous prime is 131224355002211. The next prime is 131224355002259. The reversal of 131224355002225 is 522200553422131.

It can be written as a sum of positive squares in 6 ways, for example, as 2443347260641 + 128781007741584 = 1563121^2 + 11348172^2 .

It is not a de Polignac number, because 131224355002225 - 2⁵ = 131224355002193 is a prime.

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, 794975670 + ... + 795140719.

Almost surely, 2^{131224355002225} is an apocalyptic number.

It is an amenable number.

131224355002225 is a deficient number, since it is larger than the sum of its proper divisors (31543138910955).

131224355002225 is a wasteful number, since it uses less digits than its factorization.

131224355002225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590119700 (or 1590119695 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 131224355002225 in words is "one hundred thirty-one trillion, two hundred twenty-four billion, three hundred fifty-five million, two thousand, two hundred twenty-five".