220112 has 10 divisors (see below), whose sum is σ = 426498. Its totient is φ = 110048.

The previous prime is 220063. The next prime is 220123. The reversal of 220112 is 211022.

It can be written as a sum of positive squares in only one way, i.e., 132496 + 87616 = 364^2 + 296^2 .

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 220112.

It is a congruent number.

It is an unprimeable number.

220112 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6863 + ... + 6894.

2²²⁰¹¹² is an apocalyptic number.

It is an amenable number.

220112 is a deficient number, since it is larger than the sum of its proper divisors (206386).

220112 is a wasteful number, since it uses less digits than its factorization.

220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13765 (or 13759 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 220112 is about 469.1609531920. The cubic root of 220112 is about 60.3783499149.

Adding to 220112 its reverse (211022), we get a palindrome (431134).

The spelling of 220112 in words is "two hundred twenty thousand, one hundred twelve", and thus it is an iban number.