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12199 = 111109

12199 has 4 divisors (see below), whose sum is σ = 13320. Its totient is φ = 11080.

The previous prime is 12197. The next prime is 12203. The reversal of 12199 is 99121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99121 = 119011.

It is a cyclic number.

It is not a de Polignac number, because 12199 - 21 = 12197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12197) 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, 544 + ... + 565.

It is an arithmetic number, because the mean of its divisors is an integer number (3330).

212199 is an apocalyptic number.

12199 is a deficient number, since it is larger than the sum of its proper divisors (1121).

12199 is a wasteful number, since it uses less digits than its factorization.

12199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120.

The product of its digits is 162, while the sum is 22.

The square root of 12199 is about 110.4490832918. The cubic root of 12199 is about 23.0201461795.

Adding to 12199 its sum of digits (22), we get a palindrome (12221).

The spelling of 12199 in words is "twelve thousand, one hundred ninety-nine".

Divisors: 1 11 1109 12199