14204134232221 has 2 divisors, whose sum is σ = 14204134232222. Its totient is φ = 14204134232220.

The previous prime is 14204134232207. The next prime is 14204134232279. The reversal of 14204134232221 is 12223243140241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9062441931321 + 5141692300900 = 3010389^2 + 2267530^2 .

It is a cyclic number.

It is not a de Polignac number, because 14204134232221 - 2¹⁷ = 14204134101149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14204134232521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7102067116110 + 7102067116111.

It is an arithmetic number, because the mean of its divisors is an integer number (7102067116111).

Almost surely, 2^{14204134232221} is an apocalyptic number.

It is an amenable number.

14204134232221 is a deficient number, since it is larger than the sum of its proper divisors (1).

14204134232221 is an equidigital number, since it uses as much as digits as its factorization.

14204134232221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 14204134232221 its reverse (12223243140241), we get a palindrome (26427377372462).

The spelling of 14204134232221 in words is "fourteen trillion, two hundred four billion, one hundred thirty-four million, two hundred thirty-two thousand, two hundred twenty-one".