2101202102209 has 16 divisors (see below), whose sum is σ = 2416738636800. Its totient is φ = 1789512555600.

The previous prime is 2101202102191. The next prime is 2101202102221. The reversal of 2101202102209 is 9022012021012.

It is not a de Polignac number, because 2101202102209 - 2⁵ = 2101202102177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2101202102209.

It is not an unprimeable number, because it can be changed into a prime (2101202102249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4154892 + ... + 4633090.

It is an arithmetic number, because the mean of its divisors is an integer number (151046164800).

Almost surely, 2^{2101202102209} is an apocalyptic number.

It is an amenable number.

2101202102209 is a deficient number, since it is larger than the sum of its proper divisors (315536534591).

2101202102209 is a wasteful number, since it uses less digits than its factorization.

2101202102209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482220.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 2101202102209 in words is "two trillion, one hundred one billion, two hundred two million, one hundred two thousand, two hundred nine".