22123130212 has 12 divisors (see below), whose sum is σ = 38717102956. Its totient is φ = 11061100800.

The previous prime is 22123130207. The next prime is 22123130213. The reversal of 22123130212 is 21203132122.

It can be written as a sum of positive squares in 2 ways, for example, as 18286071076 + 3837059136 = 135226^2 + 61944^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22123130212.

It is not an unprimeable number, because it can be changed into a prime (22123130213) 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, 5212 + ... + 210412.

Almost surely, 2^22123130212 is an apocalyptic number.

It is an amenable number.

22123130212 is a deficient number, since it is larger than the sum of its proper divisors (16593972744).

22123130212 is a wasteful number, since it uses less digits than its factorization.

22123130212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232158 (or 232156 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 22123130212 its reverse (21203132122), we get a palindrome (43326262334).

The spelling of 22123130212 in words is "twenty-two billion, one hundred twenty-three million, one hundred thirty thousand, two hundred twelve".