113102220 has 96 divisors (see below), whose sum is σ = 394845696. Its totient is φ = 23500800.

The previous prime is 113102153. The next prime is 113102239. The reversal of 113102220 is 22201311.

It is a super-2 number, since 2×113102220² = 25584224337856800, which contains 22 as substring.

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 = 113102196 and 113102205.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7621 + ... + 16860.

It is an arithmetic number, because the mean of its divisors is an integer number (4112976).

Almost surely, 2^113102220 is an apocalyptic number.

113102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113102220 is an abundant number, since it is smaller than the sum of its proper divisors (281743476).

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

113102220 is a wasteful number, since it uses less digits than its factorization.

113102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24511 (or 24509 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 113102220 is about 10634.9527502476. The cubic root of 113102220 is about 483.6045480084.

Adding to 113102220 its reverse (22201311), we get a palindrome (135303531).

Subtracting from 113102220 its reverse (22201311), we obtain a palindrome (90900909).

It can be divided in two parts, 11310 and 2220, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 113102220 in words is "one hundred thirteen million, one hundred two thousand, two hundred twenty".