344234130221 has 2 divisors, whose sum is σ = 344234130222. Its totient is φ = 344234130220.

The previous prime is 344234130173. The next prime is 344234130223. The reversal of 344234130221 is 122031432443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 335513185225 + 8720944996 = 579235^2 + 93386^2 .

It is an emirp because it is prime and its reverse (122031432443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 344234130221 - 2⁶ = 344234130157 is a prime.

Together with 344234130223, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344234130223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172117065110 + 172117065111.

It is an arithmetic number, because the mean of its divisors is an integer number (172117065111).

Almost surely, 2^344234130221 is an apocalyptic number.

It is an amenable number.

344234130221 is a deficient number, since it is larger than the sum of its proper divisors (1).

344234130221 is an equidigital number, since it uses as much as digits as its factorization.

344234130221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 344234130221 its reverse (122031432443), we get a palindrome (466265562664).

The spelling of 344234130221 in words is "three hundred forty-four billion, two hundred thirty-four million, one hundred thirty thousand, two hundred twenty-one".