2211102005209 has 2 divisors, whose sum is σ = 2211102005210. Its totient is φ = 2211102005208.

The previous prime is 2211102005179. The next prime is 2211102005213. The reversal of 2211102005209 is 9025002011122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2045391949584 + 165710055625 = 1430172^2 + 407075^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211102005209 - 2¹¹ = 2211102003161 is a prime.

It is not a weakly prime, because it can be changed into another prime (2211102005219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105551002604 + 1105551002605.

It is an arithmetic number, because the mean of its divisors is an integer number (1105551002605).

Almost surely, 2^{2211102005209} is an apocalyptic number.

It is an amenable number.

2211102005209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211102005209 is an equidigital number, since it uses as much as digits as its factorization.

2211102005209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 25.

The spelling of 2211102005209 in words is "two trillion, two hundred eleven billion, one hundred two million, five thousand, two hundred nine".