222112120 has 32 divisors (see below), whose sum is σ = 502359120. Its totient is φ = 88381440.

The previous prime is 222112087. The next prime is 222112141. The reversal of 222112120 is 21211222.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 222112120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6666 + ... + 22105.

Almost surely, 2^222112120 is an apocalyptic number.

222112120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222112120 is an abundant number, since it is smaller than the sum of its proper divisors (280247000).

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

222112120 is a wasteful number, since it uses less digits than its factorization.

222112120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28975 (or 28971 counting only the distinct ones).

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

The square root of 222112120 is about 14903.4264516587. The cubic root of 222112120 is about 605.6068132441.

Adding to 222112120 its reverse (21211222), we get a palindrome (243323342).

It can be divided in two parts, 2221 and 12120, that added together give a palindrome (14341).

The spelling of 222112120 in words is "two hundred twenty-two million, one hundred twelve thousand, one hundred twenty".