220112730 has 24 divisors (see below), whose sum is σ = 572293332. Its totient is φ = 58696704.

The previous prime is 220112729. The next prime is 220112731. The reversal of 220112730 is 37211022.

It is an interprime number because it is at equal distance from previous prime (220112729) and next prime (220112731).

It can be written as a sum of positive squares in 2 ways, for example, as 212838921 + 7273809 = 14589^2 + 2697^2 .

It is a super-2 number, since 2×220112730² = 96899227816105800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (220112731) 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, 1222759 + ... + 1222938.

Almost surely, 2^220112730 is an apocalyptic number.

220112730 is an abundant number, since it is smaller than the sum of its proper divisors (352180602).

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

220112730 is a wasteful number, since it uses less digits than its factorization.

220112730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445710 (or 2445707 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 220112730 is about 14836.1966150358. The cubic root of 220112730 is about 603.7841666299.

Adding to 220112730 its reverse (37211022), we get a palindrome (257323752).

The spelling of 220112730 in words is "two hundred twenty million, one hundred twelve thousand, seven hundred thirty".