220112220 has 48 divisors (see below), whose sum is σ = 619573248. Its totient is φ = 58386240.

The previous prime is 220112213. The next prime is 220112261. The reversal of 220112220 is 22211022.

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

It is a junction number, because it is equal to n+sod(n) for n = 220112196 and 220112205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1857 + ... + 21063.

It is an arithmetic number, because the mean of its divisors is an integer number (12907776).

Almost surely, 2^220112220 is an apocalyptic number.

220112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220112220 is an abundant number, since it is smaller than the sum of its proper divisors (399461028).

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

220112220 is a wasteful number, since it uses less digits than its factorization.

220112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19410 (or 19408 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 220112220 is about 14836.1794273324. The cubic root of 220112220 is about 603.7837003080.

Adding to 220112220 its reverse (22211022), we get a palindrome (242323242).

The spelling of 220112220 in words is "two hundred twenty million, one hundred twelve thousand, two hundred twenty".