How many original air dates were there for episode 22?
CREATE TABLE table_24798489_2 (original_airdate VARCHAR, episode_number VARCHAR)
SELECT COUNT(original_airdate) FROM table_24798489_2 WHERE episode_number = 22
### Context: CREATE TABLE table_24798489_2 (original_airdate VARCHAR, episode_number VARCHAR) ### Question: How many original air dates were there for episode 22? ### Answer: SELECT COUNT(original_airdate) FROM table_24798489_2 WHERE episode_number = 22