220302320081 has 2 divisors, whose sum is σ = 220302320082. Its totient is φ = 220302320080.

The previous prime is 220302320057. The next prime is 220302320093. The reversal of 220302320081 is 180023203022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215802057025 + 4500263056 = 464545^2 + 67084^2 .

It is a cyclic number.

It is not a de Polignac number, because 220302320081 - 2¹⁰ = 220302319057 is a prime.

It is a super-2 number, since 2×220302320081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220302320011) 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, 110151160040 + 110151160041.

It is an arithmetic number, because the mean of its divisors is an integer number (110151160041).

Almost surely, 2^220302320081 is an apocalyptic number.

It is an amenable number.

220302320081 is a deficient number, since it is larger than the sum of its proper divisors (1).

220302320081 is an equidigital number, since it uses as much as digits as its factorization.

220302320081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

The spelling of 220302320081 in words is "two hundred twenty billion, three hundred two million, three hundred twenty thousand, eighty-one".