22232123 has 4 divisors (see below), whose sum is σ = 22253280. Its totient is φ = 22210968.

The previous prime is 22232117. The next prime is 22232143. The reversal of 22232123 is 32123222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22232123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22232143) 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, 8915 + ... + 11132.

It is an arithmetic number, because the mean of its divisors is an integer number (5563320).

Almost surely, 2^22232123 is an apocalyptic number.

22232123 is a deficient number, since it is larger than the sum of its proper divisors (21157).

22232123 is a wasteful number, since it uses less digits than its factorization.

22232123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21156.

The product of its digits is 288, while the sum is 17.

The square root of 22232123 is about 4715.0952270341. The cubic root of 22232123 is about 281.1859687649.

Adding to 22232123 its reverse (32123222), we get a palindrome (54355345).

The spelling of 22232123 in words is "twenty-two million, two hundred thirty-two thousand, one hundred twenty-three".