2211320009 has 2 divisors, whose sum is σ = 2211320010. Its totient is φ = 2211320008.

The previous prime is 2211319991. The next prime is 2211320011. The reversal of 2211320009 is 9000231122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1897038025 + 314281984 = 43555^2 + 17728^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2211320009 is a prime.

Together with 2211320011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2211320099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105660004 + 1105660005.

It is an arithmetic number, because the mean of its divisors is an integer number (1105660005).

Almost surely, 2^2211320009 is an apocalyptic number.

It is an amenable number.

2211320009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211320009 is an equidigital number, since it uses as much as digits as its factorization.

2211320009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 2211320009 is about 47024.6744698993. The cubic root of 2211320009 is about 1302.8183449011.

The spelling of 2211320009 in words is "two billion, two hundred eleven million, three hundred twenty thousand, nine".