222120101212 has 12 divisors (see below), whose sum is σ = 388777086936. Its totient is φ = 111040933520.

The previous prime is 222120101191. The next prime is 222120101237. The reversal of 222120101212 is 212101021222.

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 3 ways as a sum of consecutive naturals, for example, 4753114 + ... + 4799617.

It is an arithmetic number, because the mean of its divisors is an integer number (32398090578).

Almost surely, 2^222120101212 is an apocalyptic number.

It is an amenable number.

222120101212 is a deficient number, since it is larger than the sum of its proper divisors (166656985724).

222120101212 is a wasteful number, since it uses less digits than its factorization.

222120101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9558548 (or 9558546 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222120101212 its reverse (212101021222), we get a palindrome (434221122434).

The spelling of 222120101212 in words is "two hundred twenty-two billion, one hundred twenty million, one hundred one thousand, two hundred twelve".