22320131212 has 12 divisors (see below), whose sum is σ = 41116031320. Its totient is φ = 10572693696.

The previous prime is 22320131189. The next prime is 22320131227. The reversal of 22320131212 is 21213102322.

It is a super-3 number, since 3×22320131212³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 22320131212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146842893 + ... + 146843044.

Almost surely, 2^22320131212 is an apocalyptic number.

It is an amenable number.

22320131212 is a deficient number, since it is larger than the sum of its proper divisors (18795900108).

22320131212 is a wasteful number, since it uses less digits than its factorization.

22320131212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293685960 (or 293685958 counting only the distinct ones).

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

Adding to 22320131212 its reverse (21213102322), we get a palindrome (43533233534).

The spelling of 22320131212 in words is "twenty-two billion, three hundred twenty million, one hundred thirty-one thousand, two hundred twelve".