220020111111169 has 2 divisors, whose sum is σ = 220020111111170. Its totient is φ = 220020111111168.

The previous prime is 220020111110957. The next prime is 220020111111179. The reversal of 220020111111169 is 961111111020022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201212380954225 + 18807730156944 = 14184935^2 + 4336788^2 .

It is a cyclic number.

It is not a de Polignac number, because 220020111111169 - 2¹¹ = 220020111109121 is a prime.

It is a super-2 number, since 2×220020111111169² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220020111111179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110010055555584 + 110010055555585.

It is an arithmetic number, because the mean of its divisors is an integer number (110010055555585).

Almost surely, 2^{220020111111169} is an apocalyptic number.

It is an amenable number.

220020111111169 is a deficient number, since it is larger than the sum of its proper divisors (1).

220020111111169 is an equidigital number, since it uses as much as digits as its factorization.

220020111111169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 28.

The spelling of 220020111111169 in words is "two hundred twenty trillion, twenty billion, one hundred eleven million, one hundred eleven thousand, one hundred sixty-nine".