Swaziland is 39,464 times larger than Vatican.
Area: 17,364 km2 World Factbook
Population: 1,419,623 (July 2014) World Factbook
Swaziland, officially the Kingdom of Swaziland and sometimes called kaNgwane or Eswatini, is a sovereign state in Southern Africa surrounded – with the exception of Mozambique to its east – by South Africa. Wikipedia
Area: 0 km2 World Factbook
Population: 842 (July 2014) World Factbook
Vatican City, officially Vatican City State, is one of the last six remaining absolute monarchies whose territory consists of a walled enclave within the city of Rome. It has an area of approximately 44 hectares, and a population of around 840. Wikipedia