Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_30 (sunk_by_warship_or_raider VARCHAR, german_submarines_lost VARCHAR, sunk_by_aircraft VARCHAR)

### Question ###
What is the total number sunk by warship or raider with 20 German submarines lost and more than 21616 sunk by aircraft?

### Accurate SQL ###

SELECT COUNT(sunk_by_warship_or_raider) FROM table_name_30 WHERE german_submarines_lost = 20 AND sunk_by_aircraft > 21616