222120122212 has 24 divisors (see below), whose sum is σ = 412292089440. Its totient is φ = 104411623680.

The previous prime is 222120122183. The next prime is 222120122261. The reversal of 222120122212 is 212221021222.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 222120122212.

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, 11145133 + ... + 11165044.

It is an arithmetic number, because the mean of its divisors is an integer number (17178837060).

Almost surely, 2^222120122212 is an apocalyptic number.

It is an amenable number.

222120122212 is a deficient number, since it is larger than the sum of its proper divisors (190171967228).

222120122212 is a wasteful number, since it uses less digits than its factorization.

222120122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22310331 (or 22310329 counting only the distinct ones).

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

Adding to 222120122212 its reverse (212221021222), we get a palindrome (434341143434).

The spelling of 222120122212 in words is "two hundred twenty-two billion, one hundred twenty million, one hundred twenty-two thousand, two hundred twelve".