12199899 has 16 divisors (see below), whose sum is σ = 16853760. Its totient is φ = 7843680.

The previous prime is 12199883. The next prime is 12199903. The reversal of 12199899 is 99899121.

It is not a de Polignac number, because 12199899 - 2⁴ = 12199883 is a prime.

It is a super-2 number, since 2×12199899² = 297675071220402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12199879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14122 + ... + 14960.

It is an arithmetic number, because the mean of its divisors is an integer number (1053360).

Almost surely, 2^12199899 is an apocalyptic number.

12199899 is a deficient number, since it is larger than the sum of its proper divisors (4653861).

12199899 is a wasteful number, since it uses less digits than its factorization.

12199899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010.

The product of its digits is 104976, while the sum is 48.

The square root of 12199899 is about 3492.8353811767. The cubic root of 12199899 is about 230.2071165218.

It can be divided in two parts, 12199 and 899, that multiplied together give a palindrome (10966901).

The spelling of 12199899 in words is "twelve million, one hundred ninety-nine thousand, eight hundred ninety-nine".