12226636 has 12 divisors (see below), whose sum is σ = 21428680. Its totient is φ = 6104160.

The previous prime is 12226631. The next prime is 12226637. The reversal of 12226636 is 63662221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12226631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1360 + ... + 5128.

Almost surely, 2^12226636 is an apocalyptic number.

It is an amenable number.

12226636 is a deficient number, since it is larger than the sum of its proper divisors (9202044).

12226636 is a wasteful number, since it uses less digits than its factorization.

12226636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4584 (or 4582 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

The square root of 12226636 is about 3496.6606927181. The cubic root of 12226636 is about 230.3751659109.

Adding to 12226636 its reverse (63662221), we get a palindrome (75888857).

The spelling of 12226636 in words is "twelve million, two hundred twenty-six thousand, six hundred thirty-six".