CREATE TABLE table_name_51 (rank NUMBER, province VARCHAR2, date_of_official_foundation_of_municipality VARCHAR2)

What is the sum of Rank, when Province is G l n, when Date of Official Foundation of Municipality is after 1922, and when 2006 is greater than 557366?
SELECT SUM(rank) FROM table_name_51 WHERE province = "gīlān" AND date_of_official_foundation_of_municipality > 1922 AND 2006 > 557366
SELECT SUM("rank") FROM "table_name_51" WHERE FALSE