21333332120 has 32 divisors (see below), whose sum is σ = 48004827120. Its totient is φ = 8532474240.

The previous prime is 21333332099. The next prime is 21333332149. The reversal of 21333332120 is 2123333312.

It is a super-2 number, since 2×21333332120² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506594 + ... + 547086.

Almost surely, 2^21333332120 is an apocalyptic number.

21333332120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21333332120 is an abundant number, since it is smaller than the sum of its proper divisors (26671495000).

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

21333332120 is a wasteful number, since it uses less digits than its factorization.

21333332120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53675 (or 53671 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 21333332120 its reverse (2123333312), we get a palindrome (23456665432).

The spelling of 21333332120 in words is "twenty-one billion, three hundred thirty-three million, three hundred thirty-two thousand, one hundred twenty".