21152513202 has 64 divisors (see below), whose sum is σ = 43821527040. Its totient is φ = 6801629184.

The previous prime is 21152513197. The next prime is 21152513209. The reversal of 21152513202 is 20231525112.

It is not an unprimeable number, because it can be changed into a prime (21152513209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16409374 + ... + 16410662.

It is an arithmetic number, because the mean of its divisors is an integer number (684711360).

Almost surely, 2^21152513202 is an apocalyptic number.

21152513202 is an abundant number, since it is smaller than the sum of its proper divisors (22669013838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21152513202 is a wasteful number, since it uses less digits than its factorization.

21152513202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1907.

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 21152513202 in words is "twenty-one billion, one hundred fifty-two million, five hundred thirteen thousand, two hundred two".