14221321 has 2 divisors, whose sum is σ = 14221322. Its totient is φ = 14221320.

The previous prime is 14221309. The next prime is 14221327. The reversal of 14221321 is 12312241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11696400 + 2524921 = 3420^2 + 1589^2 .

It is an emirp because it is prime and its reverse (12312241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14221321 - 2⁵ = 14221289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14221295 and 14221304.

It is not a weakly prime, because it can be changed into another prime (14221327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7110660 + 7110661.

It is an arithmetic number, because the mean of its divisors is an integer number (7110661).

Almost surely, 2^14221321 is an apocalyptic number.

It is an amenable number.

14221321 is a deficient number, since it is larger than the sum of its proper divisors (1).

14221321 is an equidigital number, since it uses as much as digits as its factorization.

14221321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96, while the sum is 16.

The square root of 14221321 is about 3771.1166781207. The cubic root of 14221321 is about 242.2776280108.

Adding to 14221321 its reverse (12312241), we get a palindrome (26533562).

The spelling of 14221321 in words is "fourteen million, two hundred twenty-one thousand, three hundred twenty-one".