14469447221 has 2 divisors, whose sum is σ = 14469447222. Its totient is φ = 14469447220.

The previous prime is 14469447199. The next prime is 14469447257. The reversal of 14469447221 is 12274496441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14394000625 + 75446596 = 119975^2 + 8686^2 .

It is a cyclic number.

It is not a de Polignac number, because 14469447221 - 2¹⁸ = 14469185077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14469444221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7234723610 + 7234723611.

It is an arithmetic number, because the mean of its divisors is an integer number (7234723611).

Almost surely, 2^14469447221 is an apocalyptic number.

It is an amenable number.

14469447221 is a deficient number, since it is larger than the sum of its proper divisors (1).

14469447221 is an equidigital number, since it uses as much as digits as its factorization.

14469447221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 44.

The spelling of 14469447221 in words is "fourteen billion, four hundred sixty-nine million, four hundred forty-seven thousand, two hundred twenty-one".