21332204032 has 20 divisors (see below), whose sum is σ = 42622744626. Its totient is φ = 10666101760.

The previous prime is 21332204017. The next prime is 21332204053. The reversal of 21332204032 is 23040223312.

It can be written as a sum of positive squares in only one way, i.e., 19105874176 + 2226329856 = 138224^2 + 47184^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21332203994 and 21332204012.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 20831719 + ... + 20832742.

Almost surely, 2^21332204032 is an apocalyptic number.

It is an amenable number.

21332204032 is a deficient number, since it is larger than the sum of its proper divisors (21290540594).

21332204032 is an frugal number, since it uses more digits than its factorization.

21332204032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41664479 (or 41664463 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 21332204032 its reverse (23040223312), we get a palindrome (44372427344).

The spelling of 21332204032 in words is "twenty-one billion, three hundred thirty-two million, two hundred four thousand, thirty-two".