21332024000 has 112 divisors (see below), whose sum is σ = 60375881280. Its totient is φ = 7313817600.

The previous prime is 21332023991. The next prime is 21332024003. The reversal of 21332024000 is 42023312.

It is a tau number, because it is divible by the number of its divisors (112).

It is a self number, because there is not a number n which added to its sum of digits gives 21332024000.

It is not an unprimeable number, because it can be changed into a prime (21332024003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134465 + ... + 246464.

Almost surely, 2^21332024000 is an apocalyptic number.

21332024000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21332024000 is an abundant number, since it is smaller than the sum of its proper divisors (39043857280).

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

21332024000 is an equidigital number, since it uses as much as digits as its factorization.

21332024000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380963 (or 380943 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 21332024000 its reverse (42023312), we get a palindrome (21374047312).

The spelling of 21332024000 in words is "twenty-one billion, three hundred thirty-two million, twenty-four thousand".