14340312221 has 2 divisors, whose sum is σ = 14340312222. Its totient is φ = 14340312220.

The previous prime is 14340312197. The next prime is 14340312241. The reversal of 14340312221 is 12221304341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11801563225 + 2538748996 = 108635^2 + 50386^2 .

It is an emirp because it is prime and its reverse (12221304341) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14340312221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14340312241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7170156110 + 7170156111.

It is an arithmetic number, because the mean of its divisors is an integer number (7170156111).

Almost surely, 2^14340312221 is an apocalyptic number.

It is an amenable number.

14340312221 is a deficient number, since it is larger than the sum of its proper divisors (1).

14340312221 is an equidigital number, since it uses as much as digits as its factorization.

14340312221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 14340312221 its reverse (12221304341), we get a palindrome (26561616562).

The spelling of 14340312221 in words is "fourteen billion, three hundred forty million, three hundred twelve thousand, two hundred twenty-one".