Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### 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