27213020201 has 2 divisors, whose sum is σ = 27213020202. Its totient is φ = 27213020200.

The previous prime is 27213020189. The next prime is 27213020209. The reversal of 27213020201 is 10202031272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17245992976 + 9967027225 = 131324^2 + 99835^2 .

It is a cyclic number.

It is not a de Polignac number, because 27213020201 - 2¹⁸ = 27212758057 is a prime.

It is not a weakly prime, because it can be changed into another prime (27213020209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13606510100 + 13606510101.

It is an arithmetic number, because the mean of its divisors is an integer number (13606510101).

Almost surely, 2^27213020201 is an apocalyptic number.

It is an amenable number.

27213020201 is a deficient number, since it is larger than the sum of its proper divisors (1).

27213020201 is an equidigital number, since it uses as much as digits as its factorization.

27213020201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

Adding to 27213020201 its reverse (10202031272), we get a palindrome (37415051473).

The spelling of 27213020201 in words is "twenty-seven billion, two hundred thirteen million, twenty thousand, two hundred one".