12223065 has 16 divisors (see below), whose sum is σ = 20232000. Its totient is φ = 6293952.

The previous prime is 12223049. The next prime is 12223087. The reversal of 12223065 is 56032221.

It is not a de Polignac number, because 12223065 - 2⁴ = 12223049 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13615 + ... + 14484.

It is an arithmetic number, because the mean of its divisors is an integer number (1264500).

Almost surely, 2^12223065 is an apocalyptic number.

12223065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12223065 is a deficient number, since it is larger than the sum of its proper divisors (8008935).

12223065 is a wasteful number, since it uses less digits than its factorization.

12223065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28136.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 12223065 is about 3496.1500253851. The cubic root of 12223065 is about 230.3527353797.

Adding to 12223065 its reverse (56032221), we get a palindrome (68255286).

The spelling of 12223065 in words is "twelve million, two hundred twenty-three thousand, sixty-five".