23222222321 has 4 divisors (see below), whose sum is σ = 23249257200. Its totient is φ = 23195187444.

The previous prime is 23222222281. The next prime is 23222222341. The reversal of 23222222321 is 12322222232.

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 a de Polignac number, because none of the positive numbers 2^k-23222222321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23222222341) 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, 13516151 + ... + 13517868.

It is an arithmetic number, because the mean of its divisors is an integer number (5812314300).

Almost surely, 2^23222222321 is an apocalyptic number.

It is an amenable number.

23222222321 is a deficient number, since it is larger than the sum of its proper divisors (27034879).

23222222321 is an equidigital number, since it uses as much as digits as its factorization.

23222222321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27034878.

The product of its digits is 2304, while the sum is 23.

Adding to 23222222321 its reverse (12322222232), we get a palindrome (35544444553).

The spelling of 23222222321 in words is "twenty-three billion, two hundred twenty-two million, two hundred twenty-two thousand, three hundred twenty-one".