22233211212 has 12 divisors (see below), whose sum is σ = 51877492856. Its totient is φ = 7411070400.

The previous prime is 22233211207. The next prime is 22233211213. The reversal of 22233211212 is 21211233222.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (22233211213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 926383789 + ... + 926383812.

Almost surely, 2^22233211212 is an apocalyptic number.

It is an amenable number.

22233211212 is an abundant number, since it is smaller than the sum of its proper divisors (29644281644).

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

22233211212 is a wasteful number, since it uses less digits than its factorization.

22233211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852767608 (or 1852767606 counting only the distinct ones).

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

Adding to 22233211212 its reverse (21211233222), we get a palindrome (43444444434).

The spelling of 22233211212 in words is "twenty-two billion, two hundred thirty-three million, two hundred eleven thousand, two hundred twelve".