2152202131521 has 48 divisors (see below), whose sum is σ = 3364566266880. Its totient is φ = 1317835854720.

The previous prime is 2152202131493. The next prime is 2152202131531. The reversal of 2152202131521 is 1251312022512.

2152202131521 is a `hidden beast` number, since 2 + 1 + 5 + 2 + 2 + 0 + 2 + 131 + 521 = 666.

It is not a de Polignac number, because 2152202131521 - 2⁵ = 2152202131489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2152202131531) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35678616 + ... + 35738886.

It is an arithmetic number, because the mean of its divisors is an integer number (70095130560).

Almost surely, 2^{2152202131521} is an apocalyptic number.

It is an amenable number.

2152202131521 is a deficient number, since it is larger than the sum of its proper divisors (1212364135359).

2152202131521 is a wasteful number, since it uses less digits than its factorization.

2152202131521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61806 (or 61803 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The spelling of 2152202131521 in words is "two trillion, one hundred fifty-two billion, two hundred two million, one hundred thirty-one thousand, five hundred twenty-one".