Find the country with the lowest population density?
As of 2021, according to data from the World Bank, Mongolia has the lowest population density among all countries in the world. It has a population density of about 2 people per square kilometer. With a land area of more than 1.5 million square kilometers, Mongolia has a total population of just over 3 million people.
Complete the following task based on the instruction and optional input provided.### Instruction:
Find the country with the lowest population density?

### Output:
As of 2021, according to data from the World Bank, Mongolia has the lowest population density among all countries in the world. It has a population density of about 2 people per square kilometer. With a land area of more than 1.5 million square kilometers, Mongolia has a total population of just over 3 million people.