21332202320 has 80 divisors (see below), whose sum is σ = 58268270592. Its totient is φ = 7160455680.

The previous prime is 21332202301. The next prime is 21332202337. The reversal of 21332202320 is 2320223312.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 21332202292 and 21332202301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 920912 + ... + 943791.

Almost surely, 2^21332202320 is an apocalyptic number.

21332202320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21332202320 is an abundant number, since it is smaller than the sum of its proper divisors (36936068272).

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

21332202320 is a wasteful number, since it uses less digits than its factorization.

21332202320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864740 (or 1864734 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 21332202320 its reverse (2320223312), we get a palindrome (23652425632).

The spelling of 21332202320 in words is "twenty-one billion, three hundred thirty-two million, two hundred two thousand, three hundred twenty".