222211022212 has 12 divisors (see below), whose sum is σ = 388885349916. Its totient is φ = 111100922240.

The previous prime is 222211022203. The next prime is 222211022233. The reversal of 222211022212 is 212220112222.

It can be written as a sum of positive squares in 2 ways, for example, as 149663754496 + 72547267716 = 386864^2 + 269346^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 222211022212.

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, 1037089 + ... + 1232872.

It is an arithmetic number, because the mean of its divisors is an integer number (32407112493).

Almost surely, 2^222211022212 is an apocalyptic number.

It is an amenable number.

222211022212 is a deficient number, since it is larger than the sum of its proper divisors (166674327704).

222211022212 is a wasteful number, since it uses less digits than its factorization.

222211022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2294438 (or 2294436 counting only the distinct ones).

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

Adding to 222211022212 its reverse (212220112222), we get a palindrome (434431134434).

The spelling of 222211022212 in words is "two hundred twenty-two billion, two hundred eleven million, twenty-two thousand, two hundred twelve".