222112100212 has 12 divisors (see below), whose sum is σ = 395284246560. Its totient is φ = 109173744056.

The previous prime is 222112100209. The next prime is 222112100219. The reversal of 222112100212 is 212001211222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222112100219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470576248 + ... + 470576719.

It is an arithmetic number, because the mean of its divisors is an integer number (32940353880).

Almost surely, 2^222112100212 is an apocalyptic number.

It is an amenable number.

222112100212 is a deficient number, since it is larger than the sum of its proper divisors (173172146348).

222112100212 is a wasteful number, since it uses less digits than its factorization.

222112100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941153030 (or 941153028 counting only the distinct ones).

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

Adding to 222112100212 its reverse (212001211222), we get a palindrome (434113311434).

The spelling of 222112100212 in words is "two hundred twenty-two billion, one hundred twelve million, one hundred thousand, two hundred twelve".