222212112 has 20 divisors (see below), whose sum is σ = 574048080. Its totient is φ = 74070688.

The previous prime is 222212063. The next prime is 222212129. The reversal of 222212112 is 211212222.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 222212091 and 222212100.

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, 2314662 + ... + 2314757.

It is an arithmetic number, because the mean of its divisors is an integer number (28702404).

Almost surely, 2^222212112 is an apocalyptic number.

It is an amenable number.

222212112 is an abundant number, since it is smaller than the sum of its proper divisors (351835968).

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

222212112 is a wasteful number, since it uses less digits than its factorization.

222212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4629430 (or 4629424 counting only the distinct ones).

The product of its digits is 64, while the sum is 15.

The square root of 222212112 is about 14906.7807389792. The cubic root of 222212112 is about 605.6976783916.

Adding to 222212112 its reverse (211212222), we get a palindrome (433424334).

The spelling of 222212112 in words is "two hundred twenty-two million, two hundred twelve thousand, one hundred twelve".