12208366 has 4 divisors (see below), whose sum is σ = 18312552. Its totient is φ = 6104182.

The previous prime is 12208351. The next prime is 12208367. The reversal of 12208366 is 66380221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66380221 = 53 ⋅1252457.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12208367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3052090 + ... + 3052093.

It is an arithmetic number, because the mean of its divisors is an integer number (4578138).

Almost surely, 2^12208366 is an apocalyptic number.

12208366 is a deficient number, since it is larger than the sum of its proper divisors (6104186).

12208366 is an equidigital number, since it uses as much as digits as its factorization.

12208366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6104185.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 12208366 is about 3494.0472234931. The cubic root of 12208366 is about 230.2603604847.

Adding to 12208366 its reverse (66380221), we get a palindrome (78588587).

The spelling of 12208366 in words is "twelve million, two hundred eight thousand, three hundred sixty-six".