2211271109 has 2 divisors, whose sum is σ = 2211271110. Its totient is φ = 2211271108.

The previous prime is 2211271099. The next prime is 2211271169. The reversal of 2211271109 is 9011721122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1986930625 + 224340484 = 44575^2 + 14978^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211271109 - 2²⁴ = 2194493893 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2211271169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105635554 + 1105635555.

It is an arithmetic number, because the mean of its divisors is an integer number (1105635555).

Almost surely, 2^2211271109 is an apocalyptic number.

It is an amenable number.

2211271109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211271109 is an equidigital number, since it uses as much as digits as its factorization.

2211271109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 2211271109 is about 47024.1545272214. The cubic root of 2211271109 is about 1302.8087415441.

The spelling of 2211271109 in words is "two billion, two hundred eleven million, two hundred seventy-one thousand, one hundred nine".