22212312123 has 8 divisors (see below), whose sum is σ = 30904086528. Its totient is φ = 14164372904.

The previous prime is 22212312049. The next prime is 22212312131. The reversal of 22212312123 is 32121321222.

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

It is a cyclic number.

It is not a de Polignac number, because 22212312123 - 2⁸ = 22212311867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22212312123.

It is not an unprimeable number, because it can be changed into a prime (22212316123) 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, 160958715 + ... + 160958852.

It is an arithmetic number, because the mean of its divisors is an integer number (3863010816).

Almost surely, 2^22212312123 is an apocalyptic number.

22212312123 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22212312123 is a deficient number, since it is larger than the sum of its proper divisors (8691774405).

22212312123 is a wasteful number, since it uses less digits than its factorization.

22212312123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321917593.

The product of its digits is 576, while the sum is 21.

Adding to 22212312123 its reverse (32121321222), we get a palindrome (54333633345).

Subtracting 22212312123 from its reverse (32121321222), we obtain a palindrome (9909009099).

The spelling of 22212312123 in words is "twenty-two billion, two hundred twelve million, three hundred twelve thousand, one hundred twenty-three".