112122100 has 18 divisors (see below), whose sum is σ = 243305174. Its totient is φ = 44848800.

The previous prime is 112122061. The next prime is 112122137. The reversal of 112122100 is 1221211.

It can be written as a sum of positive squares in 3 ways, for example, as 13278736 + 98843364 = 3644^2 + 9942^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 560511 + ... + 560710.

Almost surely, 2^112122100 is an apocalyptic number.

112122100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112122100 is an abundant number, since it is smaller than the sum of its proper divisors (131183074).

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

112122100 is a wasteful number, since it uses less digits than its factorization.

112122100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121235 (or 1121228 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 112122100 is about 10588.7723556605. The cubic root of 112122100 is about 482.2035549163.

Adding to 112122100 its reverse (1221211), we get a palindrome (113343311).

The spelling of 112122100 in words is "one hundred twelve million, one hundred twenty-two thousand, one hundred".