12224775 has 12 divisors (see below), whose sum is σ = 20211752. Its totient is φ = 6519840.

The previous prime is 12224767. The next prime is 12224783. The reversal of 12224775 is 57742221.

It is an interprime number because it is at equal distance from previous prime (12224767) and next prime (12224783).

It is not a de Polignac number, because 12224775 - 2³ = 12224767 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 (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81424 + ... + 81573.

Almost surely, 2^12224775 is an apocalyptic number.

12224775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12224775 is a deficient number, since it is larger than the sum of its proper divisors (7986977).

12224775 is a wasteful number, since it uses less digits than its factorization.

12224775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163010 (or 163005 counting only the distinct ones).

The product of its digits is 7840, while the sum is 30.

The square root of 12224775 is about 3496.3945715551. The cubic root of 12224775 is about 230.3634769520.

Adding to 12224775 its reverse (57742221), we get a palindrome (69966996).

The spelling of 12224775 in words is "twelve million, two hundred twenty-four thousand, seven hundred seventy-five".