222222120212 has 48 divisors (see below), whose sum is σ = 402135607104. Its totient is φ = 107382240000.

The previous prime is 222222120173. The next prime is 222222120251. The reversal of 222222120212 is 212021222222.

It is an interprime number because it is at equal distance from previous prime (222222120173) and next prime (222222120251).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34931912 + ... + 34938272.

It is an arithmetic number, because the mean of its divisors is an integer number (8377825148).

Almost surely, 2^222222120212 is an apocalyptic number.

It is an amenable number.

222222120212 is a deficient number, since it is larger than the sum of its proper divisors (179913486892).

222222120212 is a wasteful number, since it uses less digits than its factorization.

222222120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8520 (or 8518 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 222222120212 its reverse (212021222222), we get a palindrome (434243342434).

The spelling of 222222120212 in words is "two hundred twenty-two billion, two hundred twenty-two million, one hundred twenty thousand, two hundred twelve".