CREATE TABLE table_55278 ("Province" TEXT, "Comune" TEXT, "Population  ( inh. ) " FLOAT, "Area  ( km\\u00b2 ) " FLOAT, "Total  ( km\\u00b2 ) " FLOAT)

What is the Piano di Sorrento, Napoli lowest km2 with a total smaller than 121.14 km2?
SELECT MIN("Area (km\u00b2)") FROM table_55278 WHERE "Province" = 'napoli' AND "Comune" = 'piano di sorrento' AND "Total (km\u00b2)" < '121.14'
SELECT MIN("Area (km\u00b2)") FROM "table_55278" WHERE "Comune" = 'piano di sorrento' AND "Province" = 'napoli' AND "Total (km\u00b2)" < '121.14'