112721112 has 64 divisors (see below), whose sum is σ = 357849600. Its totient is φ = 32205600.

The previous prime is 112721111. The next prime is 112721117. The reversal of 112721112 is 211127211.

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

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112721111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35764 + ... + 38787.

It is an arithmetic number, because the mean of its divisors is an integer number (5591400).

Almost surely, 2^112721112 is an apocalyptic number.

112721112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

112721112 is an abundant number, since it is smaller than the sum of its proper divisors (245128488).

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

112721112 is a wasteful number, since it uses less digits than its factorization.

112721112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74573 (or 74563 counting only the distinct ones).

The product of its digits is 56, while the sum is 18.

The square root of 112721112 is about 10617.0199208629. The cubic root of 112721112 is about 483.0607539025.

Adding to 112721112 its reverse (211127211), we get a palindrome (323848323).

The spelling of 112721112 in words is "one hundred twelve million, seven hundred twenty-one thousand, one hundred twelve".