12031227 has 32 divisors (see below), whose sum is σ = 19407360. Its totient is φ = 7322400.

The previous prime is 12031219. The next prime is 12031247. The reversal of 12031227 is 72213021.

It is not a de Polignac number, because 12031227 - 2³ = 12031219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12031247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52888 + ... + 53114.

It is an arithmetic number, because the mean of its divisors is an integer number (606480).

Almost surely, 2^12031227 is an apocalyptic number.

12031227 is a deficient number, since it is larger than the sum of its proper divisors (7376133).

12031227 is a wasteful number, since it uses less digits than its factorization.

12031227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 12031227 is about 3468.6059159265. The cubic root of 12031227 is about 229.1412653425.

Adding to 12031227 its reverse (72213021), we get a palindrome (84244248).

The spelling of 12031227 in words is "twelve million, thirty-one thousand, two hundred twenty-seven".