222122322012 has 24 divisors (see below), whose sum is σ = 523040333200. Its totient is φ = 73361500416.

The previous prime is 222122321999. The next prime is 222122322041. The reversal of 222122322012 is 210223221222.

It is a self number, because there is not a number n which added to its sum of digits gives 222122322012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84907837 + ... + 84910452.

Almost surely, 2^222122322012 is an apocalyptic number.

It is an amenable number.

222122322012 is an abundant number, since it is smaller than the sum of its proper divisors (300918011188).

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

222122322012 is a wasteful number, since it uses less digits than its factorization.

222122322012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169818405 (or 169818403 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 222122322012 its reverse (210223221222), we get a palindrome (432345543234).

The spelling of 222122322012 in words is "two hundred twenty-two billion, one hundred twenty-two million, three hundred twenty-two thousand, twelve".