22044117621 has 4 divisors (see below), whose sum is σ = 29392156832. Its totient is φ = 14696078412.

The previous prime is 22044117569. The next prime is 22044117629. The reversal of 22044117621 is 12671144022.

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 not a de Polignac number, because 22044117621 - 2²⁵ = 22010563189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22044117629) 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, 3674019601 + ... + 3674019606.

It is an arithmetic number, because the mean of its divisors is an integer number (7348039208).

Almost surely, 2^22044117621 is an apocalyptic number.

It is an amenable number.

22044117621 is a deficient number, since it is larger than the sum of its proper divisors (7348039211).

22044117621 is an equidigital number, since it uses as much as digits as its factorization.

22044117621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7348039210.

The product of its (nonzero) digits is 5376, while the sum is 30.

The spelling of 22044117621 in words is "twenty-two billion, forty-four million, one hundred seventeen thousand, six hundred twenty-one".