Adding to 12224231 its reverse (13242221), we get a palindrome (25466452).
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-12224231 is a prime.
It is a Duffinian number.
It is a congruent number.
Almost surely, 212224231 is an apocalyptic number.
12224231 is an equidigital number, since it uses as much as digits as its factorization.
12224231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 126120.
The square root of 12224231 is about 3496.3167762661. The cubic root of 12224231 is about 230.3600598587.
The spelling of 12224231 in words is "twelve million, two hundred twenty-four thousand, two hundred thirty-one".