301131221201 has 2 divisors, whose sum is σ = 301131221202. Its totient is φ = 301131221200.

The previous prime is 301131221123. The next prime is 301131221221. The reversal of 301131221201 is 102122131103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 254540430400 + 46590790801 = 504520^2 + 215849^2 .

It is a cyclic number.

It is not a de Polignac number, because 301131221201 - 2¹⁸ = 301130959057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 301131221201.

It is not a weakly prime, because it can be changed into another prime (301131221221) 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, 150565610600 + 150565610601.

It is an arithmetic number, because the mean of its divisors is an integer number (150565610601).

Almost surely, 2^301131221201 is an apocalyptic number.

It is an amenable number.

301131221201 is a deficient number, since it is larger than the sum of its proper divisors (1).

301131221201 is an equidigital number, since it uses as much as digits as its factorization.

301131221201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 301131221201 its reverse (102122131103), we get a palindrome (403253352304).

The spelling of 301131221201 in words is "three hundred one billion, one hundred thirty-one million, two hundred twenty-one thousand, two hundred one".