222120122012 has 24 divisors (see below), whose sum is σ = 393776283600. Its totient is φ = 109617047936.

The previous prime is 222120121963. The next prime is 222120122023. The reversal of 222120122012 is 210221021222.

It is a happy number.

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, 353687 + ... + 754542.

It is an arithmetic number, because the mean of its divisors is an integer number (16407345150).

Almost surely, 2^222120122012 is an apocalyptic number.

It is an amenable number.

222120122012 is a deficient number, since it is larger than the sum of its proper divisors (171656161588).

222120122012 is a wasteful number, since it uses less digits than its factorization.

222120122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108885 (or 1108883 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222120122012 its reverse (210221021222), we get a palindrome (432341143234).

The spelling of 222120122012 in words is "two hundred twenty-two billion, one hundred twenty million, one hundred twenty-two thousand, twelve".