21622797601024 has 27 divisors (see below), whose sum is σ = 43161279659827. Its totient is φ = 10811361600256.

The previous prime is 21622797601003. The next prime is 21622797601099. The reversal of 21622797601024 is 42010679722612.

The square root of 21622797601024 is 4650032.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian 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 2 ways as a sum of consecutive naturals, for example, 74255199 + ... + 74545825.

Almost surely, 2^{21622797601024} is an apocalyptic number.

21622797601024 is the 4650032-nd square number.

It is an amenable number.

21622797601024 is a deficient number, since it is larger than the sum of its proper divisors (21538482058803).

21622797601024 is an frugal number, since it uses more digits than its factorization.

21622797601024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581270 (or 290629 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 21622797601024 in words is "twenty-one trillion, six hundred twenty-two billion, seven hundred ninety-seven million, six hundred one thousand, twenty-four".