12012266 has 16 divisors (see below), whose sum is σ = 20855040. Its totient is φ = 5082480.

The previous prime is 12012263. The next prime is 12012271. The reversal of 12012266 is 66221021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12012263) 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, 4325 + ... + 6536.

It is an arithmetic number, because the mean of its divisors is an integer number (1303440).

Almost surely, 2^12012266 is an apocalyptic number.

12012266 is a deficient number, since it is larger than the sum of its proper divisors (8842774).

12012266 is a wasteful number, since it uses less digits than its factorization.

12012266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10949.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 12012266 is about 3465.8716075469. The cubic root of 12012266 is about 229.0208278635.

Adding to 12012266 its reverse (66221021), we get a palindrome (78233287).

The spelling of 12012266 in words is "twelve million, twelve thousand, two hundred sixty-six".