14004402240221 has 2 divisors, whose sum is σ = 14004402240222. Its totient is φ = 14004402240220.

The previous prime is 14004402240209. The next prime is 14004402240239. The reversal of 14004402240221 is 12204220440041.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11936230363225 + 2068171876996 = 3454885^2 + 1438114^2 .

It is a cyclic number.

It is not a de Polignac number, because 14004402240221 - 2³⁴ = 13987222371037 is a prime.

It is a super-2 number, since 2×14004402240221² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14004402240271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7002201120110 + 7002201120111.

It is an arithmetic number, because the mean of its divisors is an integer number (7002201120111).

Almost surely, 2^{14004402240221} is an apocalyptic number.

It is an amenable number.

14004402240221 is a deficient number, since it is larger than the sum of its proper divisors (1).

14004402240221 is an equidigital number, since it uses as much as digits as its factorization.

14004402240221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 14004402240221 its reverse (12204220440041), we get a palindrome (26208622680262).

The spelling of 14004402240221 in words is "fourteen trillion, four billion, four hundred two million, two hundred forty thousand, two hundred twenty-one".