Algeria is 21 times larger than Bulgaria.
Area: 110,879 km2 World Factbook
Population: 6,924,716 (July 2014) World Factbook
Bulgaria, officially the Republic of Bulgaria, is a country in southeastern Europe. It is bordered by Romania to the north, Serbia and Macedonia to the west, Greece and Turkey to the south, and the Black Sea to the east. Wikipedia
Area: 2,381,741 km2 World Factbook
Population: 38,813,722 (July 2014) World Factbook
Algeria, officially People's Democratic Republic of Algeria, is a country in the Maghreb region of North Africa on the Mediterranean coast. Its capital and most populous city is Algiers. Wikipedia