12249227 has 4 divisors (see below), whose sum is σ = 12450096. Its totient is φ = 12048360.

The previous prime is 12249203. The next prime is 12249229. The reversal of 12249227 is 72294221.

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

It is a cyclic number.

It is not a de Polignac number, because 12249227 - 2¹⁸ = 11987083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12249227.

It is not an unprimeable number, because it can be changed into a prime (12249229) 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 in 3 ways as a sum of consecutive naturals, for example, 100343 + ... + 100464.

It is an arithmetic number, because the mean of its divisors is an integer number (3112524).

Almost surely, 2^12249227 is an apocalyptic number.

12249227 is a deficient number, since it is larger than the sum of its proper divisors (200869).

12249227 is an equidigital number, since it uses as much as digits as its factorization.

12249227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200868.

The product of its digits is 4032, while the sum is 29.

The square root of 12249227 is about 3499.8895696864. The cubic root of 12249227 is about 230.5169657019.

The spelling of 12249227 in words is "twelve million, two hundred forty-nine thousand, two hundred twenty-seven".