22304023121 has 4 divisors (see below), whose sum is σ = 22315116144. Its totient is φ = 22292930100.

The previous prime is 22304023117. The next prime is 22304023129. The reversal of 22304023121 is 12132040322.

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 22304023121 - 2² = 22304023117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22304023093 and 22304023102.

It is not an unprimeable number, because it can be changed into a prime (22304023129) 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, 5543495 + ... + 5547516.

It is an arithmetic number, because the mean of its divisors is an integer number (5578779036).

Almost surely, 2^22304023121 is an apocalyptic number.

It is an amenable number.

22304023121 is a deficient number, since it is larger than the sum of its proper divisors (11093023).

22304023121 is a wasteful number, since it uses less digits than its factorization.

22304023121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11093022.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22304023121 its reverse (12132040322), we get a palindrome (34436063443).

The spelling of 22304023121 in words is "twenty-two billion, three hundred four million, twenty-three thousand, one hundred twenty-one".