220020011009 has 2 divisors, whose sum is σ = 220020011010. Its totient is φ = 220020011008.

The previous prime is 220020010957. The next prime is 220020011033. The reversal of 220020011009 is 900110020022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162487191409 + 57532819600 = 403097^2 + 239860^2 .

It is a cyclic number.

It is not a de Polignac number, because 220020011009 - 2⁸ = 220020010753 is a prime.

It is not a weakly prime, because it can be changed into another prime (220020011509) 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, 110010005504 + 110010005505.

It is an arithmetic number, because the mean of its divisors is an integer number (110010005505).

Almost surely, 2^220020011009 is an apocalyptic number.

It is an amenable number.

220020011009 is a deficient number, since it is larger than the sum of its proper divisors (1).

220020011009 is an equidigital number, since it uses as much as digits as its factorization.

220020011009 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.

The spelling of 220020011009 in words is "two hundred twenty billion, twenty million, eleven thousand, nine".