22222303212 has 12 divisors (see below), whose sum is σ = 51852040856. Its totient is φ = 7407434400.

The previous prime is 22222303211. The next prime is 22222303217. The reversal of 22222303212 is 21230322222.

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

It is not an unprimeable number, because it can be changed into a prime (22222303211) 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, 925929289 + ... + 925929312.

Almost surely, 2^22222303212 is an apocalyptic number.

It is an amenable number.

22222303212 is an abundant number, since it is smaller than the sum of its proper divisors (29629737644).

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

22222303212 is a wasteful number, since it uses less digits than its factorization.

22222303212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851858608 (or 1851858606 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 22222303212 its reverse (21230322222), we get a palindrome (43452625434).

The spelling of 22222303212 in words is "twenty-two billion, two hundred twenty-two million, three hundred three thousand, two hundred twelve".