21333331120 has 80 divisors (see below), whose sum is σ = 49880593152. Its totient is φ = 8485210880.

The previous prime is 21333331111. The next prime is 21333331177. The reversal of 21333331120 is 2113333312.

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

It is a super-2 number, since 2×21333331120² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21333331091 and 21333331100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14006679 + ... + 14008201.

Almost surely, 2^21333331120 is an apocalyptic number.

21333331120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21333331120 is an abundant number, since it is smaller than the sum of its proper divisors (28547262032).

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

21333331120 is a wasteful number, since it uses less digits than its factorization.

21333331120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2410 (or 2404 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 21333331120 its reverse (2113333312), we get a palindrome (23446664432).

The spelling of 21333331120 in words is "twenty-one billion, three hundred thirty-three million, three hundred thirty-one thousand, one hundred twenty".