113220012 has 24 divisors (see below), whose sum is σ = 278084800. Its totient is φ = 35753616.

The previous prime is 113220001. The next prime is 113220013. The reversal of 113220012 is 210022311.

It is a super-2 number, since 2×113220012² = 25637542234560288, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 113220012.

It is not an unprimeable number, because it can be changed into a prime (113220013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248062 + ... + 248517.

Almost surely, 2^113220012 is an apocalyptic number.

113220012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

113220012 is an abundant number, since it is smaller than the sum of its proper divisors (164864788).

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

113220012 is a wasteful number, since it uses less digits than its factorization.

113220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496605 (or 496603 counting only the distinct ones).

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

The square root of 113220012 is about 10640.4892744648. The cubic root of 113220012 is about 483.7723754915.

Adding to 113220012 its reverse (210022311), we get a palindrome (323242323).

The spelling of 113220012 in words is "one hundred thirteen million, two hundred twenty thousand, twelve".