2021210221103 has 32 divisors (see below), whose sum is σ = 2139189534720. Its totient is φ = 1907251920000.

The previous prime is 2021210221091. The next prime is 2021210221159. The reversal of 2021210221103 is 3011220121202.

It is a cyclic number.

It is not a de Polignac number, because 2021210221103 - 2⁶ = 2021210221039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021210221183) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76095101 + ... + 76121657.

It is an arithmetic number, because the mean of its divisors is an integer number (66849672960).

Almost surely, 2^{2021210221103} is an apocalyptic number.

2021210221103 is a deficient number, since it is larger than the sum of its proper divisors (117979313617).

2021210221103 is a wasteful number, since it uses less digits than its factorization.

2021210221103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27039.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2021210221103 its reverse (3011220121202), we get a palindrome (5032430342305).

Subtracting 2021210221103 from its reverse (3011220121202), we obtain a palindrome (990009900099).

The spelling of 2021210221103 in words is "two trillion, twenty-one billion, two hundred ten million, two hundred twenty-one thousand, one hundred three".