344043344221 has 2 divisors, whose sum is σ = 344043344222. Its totient is φ = 344043344220.

The previous prime is 344043344219. The next prime is 344043344237. The reversal of 344043344221 is 122443340443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 180939636900 + 163103707321 = 425370^2 + 403861^2 .

It is a cyclic number.

It is not a de Polignac number, because 344043344221 - 2¹ = 344043344219 is a prime.

Together with 344043344219, 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 (344043344251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172021672110 + 172021672111.

It is an arithmetic number, because the mean of its divisors is an integer number (172021672111).

Almost surely, 2^344043344221 is an apocalyptic number.

It is an amenable number.

344043344221 is a deficient number, since it is larger than the sum of its proper divisors (1).

344043344221 is an equidigital number, since it uses as much as digits as its factorization.

344043344221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 344043344221 its reverse (122443340443), we get a palindrome (466486684664).

The spelling of 344043344221 in words is "three hundred forty-four billion, forty-three million, three hundred forty-four thousand, two hundred twenty-one".