21102002332 has 12 divisors (see below), whose sum is σ = 36934190440. Its totient is φ = 10549376496.

The previous prime is 21102002323. The next prime is 21102002347. The reversal of 21102002332 is 23320020112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376707 + ... + 429082.

Almost surely, 2^21102002332 is an apocalyptic number.

It is an amenable number.

21102002332 is a deficient number, since it is larger than the sum of its proper divisors (15832188108).

21102002332 is a wasteful number, since it uses less digits than its factorization.

21102002332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812340 (or 812338 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21102002332 its reverse (23320020112), we get a palindrome (44422022444).

The spelling of 21102002332 in words is "twenty-one billion, one hundred two million, two thousand, three hundred thirty-two".