220112312 has 48 divisors (see below), whose sum is σ = 481494960. Its totient is φ = 94058496.

The previous prime is 220112309. The next prime is 220112317. The reversal of 220112312 is 213211022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220112317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 190328 + ... + 191480.

It is an arithmetic number, because the mean of its divisors is an integer number (10031145).

Almost surely, 2^220112312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220112312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240747480).

220112312 is an abundant number, since it is smaller than the sum of its proper divisors (261382648).

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

220112312 is a wasteful number, since it uses less digits than its factorization.

220112312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660 (or 1649 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 220112312 is about 14836.1825278607. The cubic root of 220112312 is about 603.7837844289.

Adding to 220112312 its reverse (213211022), we get a palindrome (433323334).

The spelling of 220112312 in words is "two hundred twenty million, one hundred twelve thousand, three hundred twelve".