12199112 has 16 divisors (see below), whose sum is σ = 23055360. Its totient is φ = 6051024.

The previous prime is 12199097. The next prime is 12199133. The reversal of 12199112 is 21199121.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4988 + ... + 7019.

It is an arithmetic number, because the mean of its divisors is an integer number (1440960).

Almost surely, 2^12199112 is an apocalyptic number.

It is an amenable number.

12199112 is a deficient number, since it is larger than the sum of its proper divisors (10856248).

12199112 is a wasteful number, since it uses less digits than its factorization.

12199112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12140 (or 12136 counting only the distinct ones).

The product of its digits is 324, while the sum is 26.

The square root of 12199112 is about 3492.7227201712. The cubic root of 12199112 is about 230.2021662924.

Subtracting 12199112 from its reverse (21199121), we obtain a palindrome (9000009).

The spelling of 12199112 in words is "twelve million, one hundred ninety-nine thousand, one hundred twelve".