12224651 has 2 divisors, whose sum is σ = 12224652. Its totient is φ = 12224650.

The previous prime is 12224629. The next prime is 12224669. The reversal of 12224651 is 15642221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12224651 - 2⁶ = 12224587 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12224551) 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 as a sum of consecutive naturals, namely, 6112325 + 6112326.

It is an arithmetic number, because the mean of its divisors is an integer number (6112326).

Almost surely, 2^12224651 is an apocalyptic number.

12224651 is a deficient number, since it is larger than the sum of its proper divisors (1).

12224651 is an equidigital number, since it uses as much as digits as its factorization.

12224651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 23.

The square root of 12224651 is about 3496.3768389577. The cubic root of 12224651 is about 230.3626980647.

Adding to 12224651 its reverse (15642221), we get a palindrome (27866872).

The spelling of 12224651 in words is "twelve million, two hundred twenty-four thousand, six hundred fifty-one".