112121112 has 16 divisors (see below), whose sum is σ = 280302840. Its totient is φ = 37373696.

The previous prime is 112121099. The next prime is 112121117. The reversal of 112121112 is 211121211.

It is a super-2 number, since 2×112121112² = 25142287512233088, which contains 22 as substring.

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

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 (112121117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2335833 + ... + 2335880.

Almost surely, 2^112121112 is an apocalyptic number.

112121112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

112121112 is an abundant number, since it is smaller than the sum of its proper divisors (168181728).

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

112121112 is a wasteful number, since it uses less digits than its factorization.

112121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4671722 (or 4671718 counting only the distinct ones).

The product of its digits is 8, while the sum is 12.

The square root of 112121112 is about 10588.7257023685. The cubic root of 112121112 is about 482.2021385482.

Adding to 112121112 its reverse (211121211), we get a palindrome (323242323).

Subtracting 112121112 from its reverse (211121211), we obtain a palindrome (99000099).

The spelling of 112121112 in words is "one hundred twelve million, one hundred twenty-one thousand, one hundred twelve".