20215251202 has 16 divisors (see below), whose sum is σ = 31200914232. Its totient is φ = 9818723200.

The previous prime is 20215251163. The next prime is 20215251209.

20215251202 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 20214868041 + 383161 = 142179^2 + 619^2 .

It is not an unprimeable number, because it can be changed into a prime (20215251209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 933403 + ... + 954814.

Almost surely, 2^20215251202 is an apocalyptic number.

20215251202 is a deficient number, since it is larger than the sum of its proper divisors (10985663030).

20215251202 is a wasteful number, since it uses less digits than its factorization.

20215251202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888373.

The product of its (nonzero) digits is 800, while the sum is 22.

The spelling of 20215251202 in words is "twenty billion, two hundred fifteen million, two hundred fifty-one thousand, two hundred two".