222112012 has 12 divisors (see below), whose sum is σ = 405596016. Its totient is φ = 106227440.

The previous prime is 222112003. The next prime is 222112019. The reversal of 222112012 is 210211222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 222111983 and 222112001.

It is not an unprimeable number, because it can be changed into a prime (222112019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1207039 + ... + 1207222.

It is an arithmetic number, because the mean of its divisors is an integer number (33799668).

Almost surely, 2^222112012 is an apocalyptic number.

It is an amenable number.

222112012 is a deficient number, since it is larger than the sum of its proper divisors (183484004).

222112012 is a wasteful number, since it uses less digits than its factorization.

222112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414288 (or 2414286 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 222112012 is about 14903.4228283304. The cubic root of 222112012 is about 605.6067150872.

Adding to 222112012 its reverse (210211222), we get a palindrome (432323234).

The spelling of 222112012 in words is "two hundred twenty-two million, one hundred twelve thousand, twelve".