222102212212 has 12 divisors (see below), whose sum is σ = 394153222176. Its totient is φ = 109487005880.

The previous prime is 222102212177. The next prime is 222102212219. The reversal of 222102212212 is 212212201222.

It is a self number, because there is not a number n which added to its sum of digits gives 222102212212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222102212219) 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, 391024738 + ... + 391025305.

It is an arithmetic number, because the mean of its divisors is an integer number (32846101848).

Almost surely, 2^222102212212 is an apocalyptic number.

It is an amenable number.

222102212212 is a deficient number, since it is larger than the sum of its proper divisors (172051009964).

222102212212 is a wasteful number, since it uses less digits than its factorization.

222102212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782050118 (or 782050116 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222102212212 its reverse (212212201222), we get a palindrome (434314413434).

The spelling of 222102212212 in words is "two hundred twenty-two billion, one hundred two million, two hundred twelve thousand, two hundred twelve".