12099 has 8 divisors (see below), whose sum is σ = 16720. Its totient is φ = 7776.

The previous prime is 12097. The next prime is 12101. The reversal of 12099 is 99021.

It is a happy number.

It is a Cunningham number, because it is equal to 110²-1.

It is an interprime number because it is at equal distance from previous prime (12097) and next prime (12101).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12099 - 2¹ = 12097 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (12097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57 + ... + 165.

It is an arithmetic number, because the mean of its divisors is an integer number (2090).

2¹²⁰⁹⁹ is an apocalyptic number.

12099 is a deficient number, since it is larger than the sum of its proper divisors (4621).

12099 is a wasteful number, since it uses less digits than its factorization.

12099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 12099 is about 109.9954544515. The cubic root of 12099 is about 22.9570717856.

The spelling of 12099 in words is "twelve thousand, ninety-nine".