12244321 has 2 divisors, whose sum is σ = 12244322. Its totient is φ = 12244320.

The previous prime is 12244319. The next prime is 12244327. The reversal of 12244321 is 12344221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11999296 + 245025 = 3464^2 + 495^2 .

It is a cyclic number.

It is not a de Polignac number, because 12244321 - 2¹ = 12244319 is a prime.

Together with 12244319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12244327) by changing a digit.

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 as a sum of consecutive naturals, namely, 6122160 + 6122161.

It is an arithmetic number, because the mean of its divisors is an integer number (6122161).

Almost surely, 2^12244321 is an apocalyptic number.

It is an amenable number.

12244321 is a deficient number, since it is larger than the sum of its proper divisors (1).

12244321 is an equidigital number, since it uses as much as digits as its factorization.

12244321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 19.

The square root of 12244321 is about 3499.1886202376. The cubic root of 12244321 is about 230.4861864196.

Adding to 12244321 its reverse (12344221), we get a palindrome (24588542).

The spelling of 12244321 in words is "twelve million, two hundred forty-four thousand, three hundred twenty-one".