220118222497 has 2 divisors, whose sum is σ = 220118222498. Its totient is φ = 220118222496.

The previous prime is 220118222437. The next prime is 220118222501. The reversal of 220118222497 is 794222811022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185389663761 + 34728558736 = 430569^2 + 186356^2 .

It is a cyclic number.

It is not a de Polignac number, because 220118222497 - 2³¹ = 217970738849 is a prime.

It is not a weakly prime, because it can be changed into another prime (220118222437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110059111248 + 110059111249.

It is an arithmetic number, because the mean of its divisors is an integer number (110059111249).

Almost surely, 2^220118222497 is an apocalyptic number.

It is an amenable number.

220118222497 is a deficient number, since it is larger than the sum of its proper divisors (1).

220118222497 is an equidigital number, since it uses as much as digits as its factorization.

220118222497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 220118222497 in words is "two hundred twenty billion, one hundred eighteen million, two hundred twenty-two thousand, four hundred ninety-seven".