21333402232 has 16 divisors (see below), whose sum is σ = 40148832600. Its totient is φ = 10627046880.

The previous prime is 21333402229. The next prime is 21333402341. The reversal of 21333402232 is 23220433312.

It is a super-2 number, since 2×21333402232² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21333402197 and 21333402206.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 4954494 + ... + 4958797.

Almost surely, 2^21333402232 is an apocalyptic number.

It is an amenable number.

21333402232 is a deficient number, since it is larger than the sum of its proper divisors (18815430368).

21333402232 is a wasteful number, since it uses less digits than its factorization.

21333402232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9913566 (or 9913562 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 21333402232 its reverse (23220433312), we get a palindrome (44553835544).

The spelling of 21333402232 in words is "twenty-one billion, three hundred thirty-three million, four hundred two thousand, two hundred thirty-two".