22222212323 has 4 divisors (see below), whose sum is σ = 22238398848. Its totient is φ = 22206025800.

The previous prime is 22222212227. The next prime is 22222212361. The reversal of 22222212323 is 32321222222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22222212323 - 2²⁰ = 22221163747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22222212373) 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, 8091203 + ... + 8093948.

It is an arithmetic number, because the mean of its divisors is an integer number (5559599712).

Almost surely, 2^22222212323 is an apocalyptic number.

22222212323 is a deficient number, since it is larger than the sum of its proper divisors (16186525).

22222212323 is a wasteful number, since it uses less digits than its factorization.

22222212323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16186524.

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

Adding to 22222212323 its reverse (32321222222), we get a palindrome (54543434545).

The spelling of 22222212323 in words is "twenty-two billion, two hundred twenty-two million, two hundred twelve thousand, three hundred twenty-three".