2122102211809 has 2 divisors, whose sum is σ = 2122102211810. Its totient is φ = 2122102211808.

The previous prime is 2122102211759. The next prime is 2122102211813. The reversal of 2122102211809 is 9081122012212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1974876521809 + 147225690000 = 1405303^2 + 383700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122102211809 is a prime.

It is not a weakly prime, because it can be changed into another prime (2122102211899) 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, 1061051105904 + 1061051105905.

It is an arithmetic number, because the mean of its divisors is an integer number (1061051105905).

Almost surely, 2^{2122102211809} is an apocalyptic number.

It is an amenable number.

2122102211809 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122102211809 is an equidigital number, since it uses as much as digits as its factorization.

2122102211809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 31.

The spelling of 2122102211809 in words is "two trillion, one hundred twenty-two billion, one hundred two million, two hundred eleven thousand, eight hundred nine".