304125452221 has 2 divisors, whose sum is σ = 304125452222. Its totient is φ = 304125452220.

The previous prime is 304125452219. The next prime is 304125452249. The reversal of 304125452221 is 122254521403.

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., 261075012025 + 43050440196 = 510955^2 + 207486^2 .

It is a cyclic number.

It is not a de Polignac number, because 304125452221 - 2¹ = 304125452219 is a prime.

Together with 304125452219, 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 (304125452201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152062726110 + 152062726111.

It is an arithmetic number, because the mean of its divisors is an integer number (152062726111).

Almost surely, 2^304125452221 is an apocalyptic number.

It is an amenable number.

304125452221 is a deficient number, since it is larger than the sum of its proper divisors (1).

304125452221 is an equidigital number, since it uses as much as digits as its factorization.

304125452221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 304125452221 its reverse (122254521403), we get a palindrome (426379973624).

The spelling of 304125452221 in words is "three hundred four billion, one hundred twenty-five million, four hundred fifty-two thousand, two hundred twenty-one".