301204220021 has 2 divisors, whose sum is σ = 301204220022. Its totient is φ = 301204220020.

The previous prime is 301204219963. The next prime is 301204220033. The reversal of 301204220021 is 120022402103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165172339396 + 136031880625 = 406414^2 + 368825^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-301204220021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (301204220221) 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, 150602110010 + 150602110011.

It is an arithmetic number, because the mean of its divisors is an integer number (150602110011).

Almost surely, 2^301204220021 is an apocalyptic number.

It is an amenable number.

301204220021 is a deficient number, since it is larger than the sum of its proper divisors (1).

301204220021 is an equidigital number, since it uses as much as digits as its factorization.

301204220021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 301204220021 its reverse (120022402103), we get a palindrome (421226622124).

The spelling of 301204220021 in words is "three hundred one billion, two hundred four million, two hundred twenty thousand, twenty-one".