2105605211 has 16 divisors (see below), whose sum is σ = 2162635200. Its totient is φ = 2049504768.

The previous prime is 2105605199. The next prime is 2105605223. The reversal of 2105605211 is 1125065012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2105605199) and next prime (2105605223).

It is a cyclic number.

It is not a de Polignac number, because 2105605211 - 2¹⁴ = 2105588827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2105695211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3254090 + ... + 3254736.

It is an arithmetic number, because the mean of its divisors is an integer number (135164700).

Almost surely, 2^2105605211 is an apocalyptic number.

2105605211 is a deficient number, since it is larger than the sum of its proper divisors (57029989).

2105605211 is a wasteful number, since it uses less digits than its factorization.

2105605211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 2105605211 is about 45886.8740600185. The cubic root of 2105605211 is about 1281.7175046014.

The spelling of 2105605211 in words is "two billion, one hundred five million, six hundred five thousand, two hundred eleven".