342326221 has 2 divisors, whose sum is σ = 342326222. Its totient is φ = 342326220.

The previous prime is 342326219. The next prime is 342326251. The reversal of 342326221 is 122623243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 293745321 + 48580900 = 17139^2 + 6970^2 .

It is a cyclic number.

It is not a de Polignac number, because 342326221 - 2¹ = 342326219 is a prime.

Together with 342326219, it forms a pair of twin primes.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342326251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171163110 + 171163111.

It is an arithmetic number, because the mean of its divisors is an integer number (171163111).

Almost surely, 2^342326221 is an apocalyptic number.

It is an amenable number.

342326221 is a deficient number, since it is larger than the sum of its proper divisors (1).

342326221 is an equidigital number, since it uses as much as digits as its factorization.

342326221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 25.

The square root of 342326221 is about 18502.0599123449. The cubic root of 342326221 is about 699.5413464858.

Adding to 342326221 its reverse (122623243), we get a palindrome (464949464).

The spelling of 342326221 in words is "three hundred forty-two million, three hundred twenty-six thousand, two hundred twenty-one".