222121101112 has 64 divisors (see below), whose sum is σ = 428857027200. Its totient is φ = 107788800000.

The previous prime is 222121101089. The next prime is 222121101113. The reversal of 222121101112 is 211101121222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222121101113) 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, 69216564 + ... + 69219772.

It is an arithmetic number, because the mean of its divisors is an integer number (6700891050).

Almost surely, 2^222121101112 is an apocalyptic number.

It is an amenable number.

222121101112 is a deficient number, since it is larger than the sum of its proper divisors (206735926088).

222121101112 is a wasteful number, since it uses less digits than its factorization.

222121101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4288 (or 4284 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 222121101112 its reverse (211101121222), we get a palindrome (433222222334).

The spelling of 222121101112 in words is "two hundred twenty-two billion, one hundred twenty-one million, one hundred one thousand, one hundred twelve".