22812123 has 8 divisors (see below), whose sum is σ = 30442000. Its totient is φ = 15195168.

The previous prime is 22812107. The next prime is 22812149. The reversal of 22812123 is 32121822.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22812123 - 2⁴ = 22812107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22812123.

It is not an unprimeable number, because it can be changed into a prime (22812193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2193 + ... + 7101.

It is an arithmetic number, because the mean of its divisors is an integer number (3805250).

Almost surely, 2^22812123 is an apocalyptic number.

22812123 is a deficient number, since it is larger than the sum of its proper divisors (7629877).

22812123 is a wasteful number, since it uses less digits than its factorization.

22812123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6461.

The product of its digits is 384, while the sum is 21.

The square root of 22812123 is about 4776.2038273089. The cubic root of 22812123 is about 283.6102361755.

Adding to 22812123 its reverse (32121822), we get a palindrome (54933945).

The spelling of 22812123 in words is "twenty-two million, eight hundred twelve thousand, one hundred twenty-three".