222100120112 has 80 divisors (see below), whose sum is σ = 475064781408. Its totient is φ = 99955814400.

The previous prime is 222100120111. The next prime is 222100120181. The reversal of 222100120112 is 211021001222.

It is not an unprimeable number, because it can be changed into a prime (222100120111) 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, 1735112 + ... + 1858712.

Almost surely, 2^222100120112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222100120112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237532390704).

222100120112 is an abundant number, since it is smaller than the sum of its proper divisors (252964661296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222100120112 is a wasteful number, since it uses less digits than its factorization.

222100120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123838 (or 123832 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 222100120112 its reverse (211021001222), we get a palindrome (433121121334).

The spelling of 222100120112 in words is "two hundred twenty-two billion, one hundred million, one hundred twenty thousand, one hundred twelve".