2220122091809 has 2 divisors, whose sum is σ = 2220122091810. Its totient is φ = 2220122091808.

The previous prime is 2220122091721. The next prime is 2220122091841. The reversal of 2220122091809 is 9081902210222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2041169403025 + 178952688784 = 1428695^2 + 423028^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220122091809 - 2²⁰ = 2220121043233 is a prime.

It is not a weakly prime, because it can be changed into another prime (2220122099809) 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, 1110061045904 + 1110061045905.

It is an arithmetic number, because the mean of its divisors is an integer number (1110061045905).

Almost surely, 2^{2220122091809} is an apocalyptic number.

It is an amenable number.

2220122091809 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220122091809 is an equidigital number, since it uses as much as digits as its factorization.

2220122091809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 38.

The spelling of 2220122091809 in words is "two trillion, two hundred twenty billion, one hundred twenty-two million, ninety-one thousand, eight hundred nine".