14234312221 has 2 divisors, whose sum is σ = 14234312222. Its totient is φ = 14234312220.

The previous prime is 14234312219. The next prime is 14234312249. The reversal of 14234312221 is 12221343241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13423771321 + 810540900 = 115861^2 + 28470^2 .

It is a cyclic number.

It is not a de Polignac number, because 14234312221 - 2¹ = 14234312219 is a prime.

Together with 14234312219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14234319221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7117156110 + 7117156111.

It is an arithmetic number, because the mean of its divisors is an integer number (7117156111).

Almost surely, 2^14234312221 is an apocalyptic number.

It is an amenable number.

14234312221 is a deficient number, since it is larger than the sum of its proper divisors (1).

14234312221 is an equidigital number, since it uses as much as digits as its factorization.

14234312221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 25.

Adding to 14234312221 its reverse (12221343241), we get a palindrome (26455655462).

The spelling of 14234312221 in words is "fourteen billion, two hundred thirty-four million, three hundred twelve thousand, two hundred twenty-one".