112507220 has 24 divisors (see below), whose sum is σ = 270017664. Its totient is φ = 38573856.

The previous prime is 112507217. The next prime is 112507229. The reversal of 112507220 is 22705211.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 112507192 and 112507201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112507229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401672 + ... + 401951.

It is an arithmetic number, because the mean of its divisors is an integer number (11250736).

Almost surely, 2^112507220 is an apocalyptic number.

112507220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112507220 is an abundant number, since it is smaller than the sum of its proper divisors (157510444).

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

112507220 is a wasteful number, since it uses less digits than its factorization.

112507220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803639 (or 803637 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 112507220 is about 10606.9420664016. The cubic root of 112507220 is about 482.7550192424.

Adding to 112507220 its product of nonzero digits (280), we get a triangular number (112507500 = T₁₅₀₀₀).

The spelling of 112507220 in words is "one hundred twelve million, five hundred seven thousand, two hundred twenty".