2101022109 has 12 divisors (see below), whose sum is σ = 3194536800. Its totient is φ = 1326961224.

The previous prime is 2101022083. The next prime is 2101022111. The reversal of 2101022109 is 9012201012.

It is not a de Polignac number, because 2101022109 - 2¹³ = 2101013917 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2101022091 and 2101022100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101022309) 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 11 ways as a sum of consecutive naturals, for example, 6143169 + ... + 6143510.

It is an arithmetic number, because the mean of its divisors is an integer number (266211400).

Almost surely, 2^2101022109 is an apocalyptic number.

It is an amenable number.

2101022109 is a deficient number, since it is larger than the sum of its proper divisors (1093514691).

2101022109 is a wasteful number, since it uses less digits than its factorization.

2101022109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12286704 (or 12286701 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 2101022109 is about 45836.9077163807. The cubic root of 2101022109 is about 1280.7868918436.

The spelling of 2101022109 in words is "two billion, one hundred one million, twenty-two thousand, one hundred nine".