21032202015 has 80 divisors (see below), whose sum is σ = 41254630560. Its totient is φ = 10166446080.

The previous prime is 21032202007. The next prime is 21032202043. The reversal of 21032202015 is 51020223012.

It is not a de Polignac number, because 21032202015 - 2³ = 21032202007 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1494331 + ... + 1508339.

It is an arithmetic number, because the mean of its divisors is an integer number (515682882).

Almost surely, 2^21032202015 is an apocalyptic number.

21032202015 is a deficient number, since it is larger than the sum of its proper divisors (20222428545).

21032202015 is a wasteful number, since it uses less digits than its factorization.

21032202015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14374 (or 14365 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 21032202015 its reverse (51020223012), we get a palindrome (72052425027).

The spelling of 21032202015 in words is "twenty-one billion, thirty-two million, two hundred two thousand, fifteen".