2101205896 has 16 divisors (see below), whose sum is σ = 4147117200. Its totient is φ = 995307984.

The previous prime is 2101205891. The next prime is 2101205903. The reversal of 2101205896 is 6985021012.

It is not an unprimeable number, because it can be changed into a prime (2101205891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6911710 + ... + 6912013.

It is an arithmetic number, because the mean of its divisors is an integer number (259194825).

Almost surely, 2^2101205896 is an apocalyptic number.

It is an amenable number.

2101205896 is a deficient number, since it is larger than the sum of its proper divisors (2045911304).

2101205896 is a wasteful number, since it uses less digits than its factorization.

2101205896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13823748 (or 13823744 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 2101205896 is about 45838.9124652843. The cubic root of 2101205896 is about 1280.8242363843.

The spelling of 2101205896 in words is "two billion, one hundred one million, two hundred five thousand, eight hundred ninety-six".