222011112 has 16 divisors (see below), whose sum is σ = 555027840. Its totient is φ = 74003696.

The previous prime is 222011089. The next prime is 222011129. The reversal of 222011112 is 211110222.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4625208 + ... + 4625255.

It is an arithmetic number, because the mean of its divisors is an integer number (34689240).

Almost surely, 2^222011112 is an apocalyptic number.

It is an amenable number.

222011112 is an abundant number, since it is smaller than the sum of its proper divisors (333016728).

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

222011112 is a wasteful number, since it uses less digits than its factorization.

222011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9250472 (or 9250468 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 222011112 is about 14900.0373153895. The cubic root of 222011112 is about 605.5149971408.

Adding to 222011112 its reverse (211110222), we get a palindrome (433121334).

The spelling of 222011112 in words is "two hundred twenty-two million, eleven thousand, one hundred twelve".