14241221 has 2 divisors, whose sum is σ = 14241222. Its totient is φ = 14241220.

The previous prime is 14241217. The next prime is 14241229. The reversal of 14241221 is 12214241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14145121 + 96100 = 3761^2 + 310^2 .

It is a cyclic number.

It is not a de Polignac number, because 14241221 - 2² = 14241217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14241221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14241229) 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, 7120610 + 7120611.

It is an arithmetic number, because the mean of its divisors is an integer number (7120611).

Almost surely, 2^14241221 is an apocalyptic number.

It is an amenable number.

14241221 is a deficient number, since it is larger than the sum of its proper divisors (1).

14241221 is an equidigital number, since it uses as much as digits as its factorization.

14241221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 128, while the sum is 17.

The square root of 14241221 is about 3773.7542315312. The cubic root of 14241221 is about 242.3905823021.

Adding to 14241221 its reverse (12214241), we get a palindrome (26455462).

The spelling of 14241221 in words is "fourteen million, two hundred forty-one thousand, two hundred twenty-one".