12112200 has 96 divisors (see below), whose sum is σ = 41738400. Its totient is φ = 3228480.

The previous prime is 12112187. The next prime is 12112231. The reversal of 12112200 is 221121.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4279 + ... + 6521.

It is an arithmetic number, because the mean of its divisors is an integer number (434775).

Almost surely, 2^12112200 is an apocalyptic number.

12112200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12112200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20869200).

12112200 is an abundant number, since it is smaller than the sum of its proper divisors (29626200).

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

12112200 is a wasteful number, since it uses less digits than its factorization.

12112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268 (or 2253 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 12112200 is about 3480.2586110805. The cubic root of 12112200 is about 229.6541746736.

Adding to 12112200 its reverse (221121), we get a palindrome (12333321).

It can be divided in two parts, 121 and 12200, that added together give a palindrome (12321).

The spelling of 12112200 in words is "twelve million, one hundred twelve thousand, two hundred".