344232221 has 2 divisors, whose sum is σ = 344232222. Its totient is φ = 344232220.

The previous prime is 344232209. The next prime is 344232241. The reversal of 344232221 is 122232443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 282609721 + 61622500 = 16811^2 + 7850^2 .

It is an emirp because it is prime and its reverse (122232443) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344232221 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344232241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172116110 + 172116111.

It is an arithmetic number, because the mean of its divisors is an integer number (172116111).

Almost surely, 2^344232221 is an apocalyptic number.

It is an amenable number.

344232221 is a deficient number, since it is larger than the sum of its proper divisors (1).

344232221 is an equidigital number, since it uses as much as digits as its factorization.

344232221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 23.

The square root of 344232221 is about 18553.4961934402. The cubic root of 344232221 is about 700.8372437831.

Adding to 344232221 its reverse (122232443), we get a palindrome (466464664).

The spelling of 344232221 in words is "three hundred forty-four million, two hundred thirty-two thousand, two hundred twenty-one".