22671322120721 has 4 divisors (see below), whose sum is σ = 22671759513600. Its totient is φ = 22670884727844.

The previous prime is 22671322120693. The next prime is 22671322120801. The reversal of 22671322120721 is 12702122317622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22671322120721 - 2¹⁴ = 22671322104337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22671322123721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218618681 + ... + 218722358.

It is an arithmetic number, because the mean of its divisors is an integer number (5667939878400).

Almost surely, 2^{22671322120721} is an apocalyptic number.

It is an amenable number.

22671322120721 is a deficient number, since it is larger than the sum of its proper divisors (437392879).

22671322120721 is an equidigital number, since it uses as much as digits as its factorization.

22671322120721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437392878.

The product of its (nonzero) digits is 56448, while the sum is 38.

The spelling of 22671322120721 in words is "twenty-two trillion, six hundred seventy-one billion, three hundred twenty-two million, one hundred twenty thousand, seven hundred twenty-one".