22200023021 has 4 divisors (see below), whose sum is σ = 24218206944. Its totient is φ = 20181839100.

The previous prime is 22200023003. The next prime is 22200023023. The reversal of 22200023021 is 12032000222.

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 22200023021 - 2¹⁴ = 22200006637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22200022987 and 22200023005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22200023023) 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, 1009091945 + ... + 1009091966.

It is an arithmetic number, because the mean of its divisors is an integer number (6054551736).

Almost surely, 2^22200023021 is an apocalyptic number.

It is an amenable number.

22200023021 is a deficient number, since it is larger than the sum of its proper divisors (2018183923).

22200023021 is a wasteful number, since it uses less digits than its factorization.

22200023021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018183922.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 22200023021 its reverse (12032000222), we get a palindrome (34232023243).

The spelling of 22200023021 in words is "twenty-two billion, two hundred million, twenty-three thousand, twenty-one".