27220301321 has 2 divisors, whose sum is σ = 27220301322. Its totient is φ = 27220301320.

The previous prime is 27220301279. The next prime is 27220301327. The reversal of 27220301321 is 12310302272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17901102025 + 9319199296 = 133795^2 + 96536^2 .

It is a cyclic number.

It is not a de Polignac number, because 27220301321 - 2¹⁰ = 27220300297 is a prime.

It is not a weakly prime, because it can be changed into another prime (27220301327) 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, 13610150660 + 13610150661.

It is an arithmetic number, because the mean of its divisors is an integer number (13610150661).

Almost surely, 2^27220301321 is an apocalyptic number.

It is an amenable number.

27220301321 is a deficient number, since it is larger than the sum of its proper divisors (1).

27220301321 is an equidigital number, since it uses as much as digits as its factorization.

27220301321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

Adding to 27220301321 its reverse (12310302272), we get a palindrome (39530603593).

The spelling of 27220301321 in words is "twenty-seven billion, two hundred twenty million, three hundred one thousand, three hundred twenty-one".