22130222212 has 18 divisors (see below), whose sum is σ = 45050809902. Its totient is φ = 9484380864.

The previous prime is 22130222183. The next prime is 22130222227. The reversal of 22130222212 is 21222203122.

It can be written as a sum of positive squares in only one way, i.e., 13859411076 + 8270811136 = 117726^2 + 90944^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22130222212.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56454453 + ... + 56454844.

Almost surely, 2^22130222212 is an apocalyptic number.

It is an amenable number.

22130222212 is an abundant number, since it is smaller than the sum of its proper divisors (22920587690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22130222212 is a wasteful number, since it uses less digits than its factorization.

22130222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112909315 (or 112909306 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22130222212 its reverse (21222203122), we get a palindrome (43352425334).

The spelling of 22130222212 in words is "twenty-two billion, one hundred thirty million, two hundred twenty-two thousand, two hundred twelve".