12126266 has 4 divisors (see below), whose sum is σ = 18189402. Its totient is φ = 6063132.

The previous prime is 12126223. The next prime is 12126299. The reversal of 12126266 is 66262121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11730625 + 395641 = 3425^2 + 629^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3031565 + ... + 3031568.

Almost surely, 2^12126266 is an apocalyptic number.

12126266 is a deficient number, since it is larger than the sum of its proper divisors (6063136).

12126266 is an equidigital number, since it uses as much as digits as its factorization.

12126266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6063135.

The product of its digits is 1728, while the sum is 26.

The square root of 12126266 is about 3482.2788515568. The cubic root of 12126266 is about 229.7430400590.

Adding to 12126266 its reverse (66262121), we get a palindrome (78388387).

The spelling of 12126266 in words is "twelve million, one hundred twenty-six thousand, two hundred sixty-six".