12117266 has 16 divisors (see below), whose sum is σ = 20896704. Its totient is φ = 5162064.

The previous prime is 12117247. The next prime is 12117283. The reversal of 12117266 is 66271121.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80 + ... + 4923.

It is an arithmetic number, because the mean of its divisors is an integer number (1306044).

Almost surely, 2^12117266 is an apocalyptic number.

12117266 is a deficient number, since it is larger than the sum of its proper divisors (8779438).

12117266 is a wasteful number, since it uses less digits than its factorization.

12117266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5185.

The product of its digits is 1008, while the sum is 26.

The square root of 12117266 is about 3480.9863544691. The cubic root of 12117266 is about 229.6861882875.

Adding to 12117266 its reverse (66271121), we get a palindrome (78388387).

The spelling of 12117266 in words is "twelve million, one hundred seventeen thousand, two hundred sixty-six".