12223765 has 16 divisors (see below), whose sum is σ = 16035840. Its totient is φ = 8904960.

The previous prime is 12223763. The next prime is 12223789. The reversal of 12223765 is 56732221.

It is not a de Polignac number, because 12223765 - 2¹ = 12223763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223763) by changing a digit.

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, 316 + ... + 4954.

It is an arithmetic number, because the mean of its divisors is an integer number (1002240).

Almost surely, 2^12223765 is an apocalyptic number.

It is an amenable number.

12223765 is a deficient number, since it is larger than the sum of its proper divisors (3812075).

12223765 is a wasteful number, since it uses less digits than its factorization.

12223765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4692.

The product of its digits is 5040, while the sum is 28.

The square root of 12223765 is about 3496.2501340722. The cubic root of 12223765 is about 230.3571326357.

Adding to 12223765 its reverse (56732221), we get a palindrome (68955986).

The spelling of 12223765 in words is "twelve million, two hundred twenty-three thousand, seven hundred sixty-five".