2205911 has 2 divisors, whose sum is σ = 2205912. Its totient is φ = 2205910.

The previous prime is 2205893. The next prime is 2205947. The reversal of 2205911 is 1195022.

2205911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2205911 - 2¹⁰ = 2204887 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2205011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1102955 + 1102956.

It is an arithmetic number, because the mean of its divisors is an integer number (1102956).

2^2205911 is an apocalyptic number.

2205911 is a deficient number, since it is larger than the sum of its proper divisors (1).

2205911 is an equidigital number, since it uses as much as digits as its factorization.

2205911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 2205911 is about 1485.2309584708. The cubic root of 2205911 is about 130.1755222770.

The spelling of 2205911 in words is "two million, two hundred five thousand, nine hundred eleven".