113222220 has 48 divisors (see below), whose sum is σ = 325596768. Its totient is φ = 29376000.

The previous prime is 113222203. The next prime is 113222237. The reversal of 113222220 is 22222311.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (113222203) and next prime (113222237).

It is a super-2 number, since 2×113222220² = 25638542203456800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 113222220.

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, 23281 + ... + 27720.

It is an arithmetic number, because the mean of its divisors is an integer number (6783266).

Almost surely, 2^113222220 is an apocalyptic number.

113222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113222220 is an abundant number, since it is smaller than the sum of its proper divisors (212374548).

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

113222220 is a wasteful number, since it uses less digits than its factorization.

113222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51050 (or 51048 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 113222220 is about 10640.5930285863. The cubic root of 113222220 is about 483.7755202903.

Adding to 113222220 its reverse (22222311), we get a palindrome (135444531).

Subtracting from 113222220 its reverse (22222311), we obtain a palindrome (90999909).

The spelling of 113222220 in words is "one hundred thirteen million, two hundred twenty-two thousand, two hundred twenty".