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_36421 ( "Round" real, "Pick #" real, "Overall" real, "Name" text, "Position" text, "College" text )

### Question ###
Which Round is the lowest one that has a Position of wide receiver, and an Overall smaller than 222?

### Accurate SQL ###

SELECT MIN("Round") FROM table_36421 WHERE "Position" = 'wide receiver' AND "Overall" < '222'