2205211091 has 2 divisors, whose sum is σ = 2205211092. Its totient is φ = 2205211090.

The previous prime is 2205211087. The next prime is 2205211093. The reversal of 2205211091 is 1901125022.

2205211091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2205211091 - 2² = 2205211087 is a prime.

Together with 2205211093, 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 (2205211093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1102605545 + 1102605546.

It is an arithmetic number, because the mean of its divisors is an integer number (1102605546).

Almost surely, 2^2205211091 is an apocalyptic number.

2205211091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2205211091 is an equidigital number, since it uses as much as digits as its factorization.

2205211091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 2205211091 is about 46959.6751585869. The cubic root of 2205211091 is about 1301.6175311205.

The spelling of 2205211091 in words is "two billion, two hundred five million, two hundred eleven thousand, ninety-one".