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_16976547_2 (immunity VARCHAR, cycle_no VARCHAR)
### Question:
Name the total number of immunity for cycle number of 13
### Answer:
SELECT COUNT(immunity) FROM table_16976547_2 WHERE cycle_no = "13"