2101212022209 has 32 divisors (see below), whose sum is σ = 2860367330304. Its totient is φ = 1371544574400.

The previous prime is 2101212022187. The next prime is 2101212022219. The reversal of 2101212022209 is 9022202121012.

It is not a de Polignac number, because 2101212022209 - 2⁷ = 2101212022081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2101212022219) 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 31 ways as a sum of consecutive naturals, for example, 161587902 + ... + 161600904.

It is an arithmetic number, because the mean of its divisors is an integer number (89386479072).

Almost surely, 2^{2101212022209} is an apocalyptic number.

It is an amenable number.

2101212022209 is a deficient number, since it is larger than the sum of its proper divisors (759155308095).

2101212022209 is a wasteful number, since it uses less digits than its factorization.

2101212022209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15077.

The product of its (nonzero) digits is 576, while the sum is 24.

The spelling of 2101212022209 in words is "two trillion, one hundred one billion, two hundred twelve million, twenty-two thousand, two hundred nine".