14213402141221 has 2 divisors, whose sum is σ = 14213402141222. Its totient is φ = 14213402141220.

The previous prime is 14213402141209. The next prime is 14213402141231. The reversal of 14213402141221 is 12214120431241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10016275522500 + 4197126618721 = 3164850^2 + 2048689^2 .

It is a cyclic number.

It is not a de Polignac number, because 14213402141221 - 2³⁵ = 14179042402853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14213402141221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14213402141201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7106701070610 + 7106701070611.

It is an arithmetic number, because the mean of its divisors is an integer number (7106701070611).

Almost surely, 2^{14213402141221} is an apocalyptic number.

It is an amenable number.

14213402141221 is a deficient number, since it is larger than the sum of its proper divisors (1).

14213402141221 is an equidigital number, since it uses as much as digits as its factorization.

14213402141221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 14213402141221 its reverse (12214120431241), we get a palindrome (26427522572462).

The spelling of 14213402141221 in words is "fourteen trillion, two hundred thirteen billion, four hundred two million, one hundred forty-one thousand, two hundred twenty-one".