12223775 has 12 divisors (see below), whose sum is σ = 15295152. Its totient is φ = 9690240.

The previous prime is 12223763. The next prime is 12223789. The reversal of 12223775 is 57732221.

It is not a de Polignac number, because 12223775 - 2⁶ = 12223711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 662 + ... + 4988.

It is an arithmetic number, because the mean of its divisors is an integer number (1274596).

Almost surely, 2^12223775 is an apocalyptic number.

12223775 is a deficient number, since it is larger than the sum of its proper divisors (3071377).

12223775 is a wasteful number, since it uses less digits than its factorization.

12223775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4450 (or 4445 counting only the distinct ones).

The product of its digits is 5880, while the sum is 29.

The square root of 12223775 is about 3496.2515641756. The cubic root of 12223775 is about 230.3571954524.

Adding to 12223775 its reverse (57732221), we get a palindrome (69955996).

The spelling of 12223775 in words is "twelve million, two hundred twenty-three thousand, seven hundred seventy-five".