2211323010209 has 2 divisors, whose sum is σ = 2211323010210. Its totient is φ = 2211323010208.

The previous prime is 2211323010181. The next prime is 2211323010271. The reversal of 2211323010209 is 9020103231122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2058263662225 + 153059347984 = 1434665^2 + 391228^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211323010209 - 2⁸ = 2211323009953 is a prime.

It is not a weakly prime, because it can be changed into another prime (2211323040209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105661505104 + 1105661505105.

It is an arithmetic number, because the mean of its divisors is an integer number (1105661505105).

Almost surely, 2^{2211323010209} is an apocalyptic number.

It is an amenable number.

2211323010209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211323010209 is an equidigital number, since it uses as much as digits as its factorization.

2211323010209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 2211323010209 in words is "two trillion, two hundred eleven billion, three hundred twenty-three million, ten thousand, two hundred nine".