Nigeria is 21 times larger than Denmark.
Area: 43,094 km2 World Factbook
Population: 5,569,077 (July 2014) World Factbook
Denmark, is a Nordic country in Northern Europe, located southwest of Sweden and south of Norway, and bordered to the south by Germany. The Kingdom of Denmark comprises Denmark and two autonomous constituent countries in the North Atlantic Ocean, the Faroe Islands and Greenland. Wikipedia
Area: 923,768 km2 World Factbook
Population: 177,155,754 (July 2014) World Factbook
Nigeria, officially the Federal Republic of Nigeria, is a federal constitutional republic comprising 36 states and its Federal Capital Territory, Abuja. Wikipedia