12227165 has 32 divisors (see below), whose sum is σ = 16744320. Its totient is φ = 8515584.

The previous prime is 12227081. The next prime is 12227167. The reversal of 12227165 is 56172221.

It is a cyclic number.

It is not a de Polignac number, because 12227165 - 2¹⁶ = 12161629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12227167) 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 31 ways as a sum of consecutive naturals, for example, 108149 + ... + 108261.

It is an arithmetic number, because the mean of its divisors is an integer number (523260).

Almost surely, 2^12227165 is an apocalyptic number.

It is an amenable number.

12227165 is a deficient number, since it is larger than the sum of its proper divisors (4517155).

12227165 is a wasteful number, since it uses less digits than its factorization.

12227165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221.

The product of its digits is 1680, while the sum is 26.

The square root of 12227165 is about 3496.7363354991. The cubic root of 12227165 is about 230.3784883485.

Adding to 12227165 its reverse (56172221), we get a palindrome (68399386).

The spelling of 12227165 in words is "twelve million, two hundred twenty-seven thousand, one hundred sixty-five".