222222212120012 has 48 divisors (see below), whose sum is σ = 421382807795712. Its totient is φ = 101932436197440.

The previous prime is 222222212119987. The next prime is 222222212120017. The reversal of 222222212120012 is 210021212222222.

It is a self number, because there is not a number n which added to its sum of digits gives 222222212120012.

It is not an unprimeable number, because it can be changed into a prime (222222212120017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382239893 + ... + 382820819.

It is an arithmetic number, because the mean of its divisors is an integer number (8778808495744).

Almost surely, 2^{222222212120012} is an apocalyptic number.

It is an amenable number.

222222212120012 is a deficient number, since it is larger than the sum of its proper divisors (199160595675700).

222222212120012 is a wasteful number, since it uses less digits than its factorization.

222222212120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626238 (or 626236 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 222222212120012 its reverse (210021212222222), we get a palindrome (432243424342234).

The spelling of 222222212120012 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, two hundred twelve million, one hundred twenty thousand, twelve".