2105822211 has 16 divisors (see below), whose sum is σ = 2905973760. Its totient is φ = 1354822560.

The previous prime is 2105822203. The next prime is 2105822239. The reversal of 2105822211 is 1122285012.

It is not a de Polignac number, because 2105822211 - 2³ = 2105822203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2105822111) 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 in 15 ways as a sum of consecutive naturals, for example, 233166 + ... + 242028.

It is an arithmetic number, because the mean of its divisors is an integer number (181623360).

Almost surely, 2^2105822211 is an apocalyptic number.

2105822211 is a deficient number, since it is larger than the sum of its proper divisors (800151549).

2105822211 is a wasteful number, since it uses less digits than its factorization.

2105822211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11626.

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 2105822211 is about 45889.2385096985. The cubic root of 2105822211 is about 1281.7615336123.

The spelling of 2105822211 in words is "two billion, one hundred five million, eight hundred twenty-two thousand, two hundred eleven".