12224165 has 4 divisors (see below), whose sum is σ = 14669004. Its totient is φ = 9779328.

The previous prime is 12224159. The next prime is 12224189. The reversal of 12224165 is 56142221.

It is a happy number.

12224165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56142221 = 4651 ⋅12071.

It can be written as a sum of positive squares in 2 ways, for example, as 4831204 + 7392961 = 2198^2 + 2719^2 .

It is a cyclic number.

It is not a de Polignac number, because 12224165 - 2⁶ = 12224101 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 12224165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1222412 + ... + 1222421.

It is an arithmetic number, because the mean of its divisors is an integer number (3667251).

Almost surely, 2^12224165 is an apocalyptic number.

It is an amenable number.

12224165 is a deficient number, since it is larger than the sum of its proper divisors (2444839).

12224165 is an equidigital number, since it uses as much as digits as its factorization.

12224165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444838.

The product of its digits is 960, while the sum is 23.

The square root of 12224165 is about 3496.3073377494. The cubic root of 12224165 is about 230.3596452780.

Adding to 12224165 its reverse (56142221), we get a palindrome (68366386).

The spelling of 12224165 in words is "twelve million, two hundred twenty-four thousand, one hundred sixty-five".