21200204332 has 12 divisors (see below), whose sum is σ = 39053008120. Its totient is φ = 10042202016.

The previous prime is 21200204239. The next prime is 21200204359. The reversal of 21200204332 is 23340200212.

It is a Harshad number since it is a multiple of its sum of digits (19).

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, 139474953 + ... + 139475104.

Almost surely, 2^21200204332 is an apocalyptic number.

It is an amenable number.

21200204332 is a deficient number, since it is larger than the sum of its proper divisors (17852803788).

21200204332 is a wasteful number, since it uses less digits than its factorization.

21200204332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278950080 (or 278950078 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 21200204332 its reverse (23340200212), we get a palindrome (44540404544).

The spelling of 21200204332 in words is "twenty-one billion, two hundred million, two hundred four thousand, three hundred thirty-two".