12127224 has 16 divisors (see below), whose sum is σ = 30318120. Its totient is φ = 4042400.

The previous prime is 12127223. The next prime is 12127243. The reversal of 12127224 is 42272121.

It is a self number, because there is not a number n which added to its sum of digits gives 12127224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12127223) 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, 252627 + ... + 252674.

Almost surely, 2^12127224 is an apocalyptic number.

It is an amenable number.

12127224 is an abundant number, since it is smaller than the sum of its proper divisors (18190896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12127224 is a wasteful number, since it uses less digits than its factorization.

12127224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505310 (or 505306 counting only the distinct ones).

The product of its digits is 448, while the sum is 21.

The square root of 12127224 is about 3482.4164024424. The cubic root of 12127224 is about 229.7490899575.

Adding to 12127224 its reverse (42272121), we get a palindrome (54399345).

The spelling of 12127224 in words is "twelve million, one hundred twenty-seven thousand, two hundred twenty-four".