21322400032512 has 54 divisors (see below), whose sum is σ = 61477735864272. Its totient is φ = 7107466676736.

The previous prime is 21322400032511. The next prime is 21322400032519. The reversal of 21322400032512 is 21523000422312.

21322400032512 is a `hidden beast` number, since 2 + 1 + 3 + 2 + 2 + 400 + 0 + 3 + 251 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21322400032511) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4627254648 + ... + 4627259255.

Almost surely, 2^{21322400032512} is an apocalyptic number.

It is an amenable number.

21322400032512 is an abundant number, since it is smaller than the sum of its proper divisors (40155335831760).

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

21322400032512 is an equidigital number, since it uses as much as digits as its factorization.

21322400032512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9254513925 (or 9254513908 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 21322400032512 its reverse (21523000422312), we get a palindrome (42845400454824).

The spelling of 21322400032512 in words is "twenty-one trillion, three hundred twenty-two billion, four hundred million, thirty-two thousand, five hundred twelve".