mysql> create table test1 (col1 int(5) zerofill);
ERROR 1050 (42S01): Table 'test1' already exists
mysql> drop table test1;
Query OK, 0 rows affected (0.00 sec)

mysql> create table test1 (col1 int(5) zerofill);
Query OK, 0 rows affected (0.00 sec)

mysql> insert into test1 values (1),(10001),(100000001);
Query OK, 3 rows affected (0.00 sec)
Records: 3  Duplicates: 0  Warnings: 0

mysql> select * from test1;
+-----------+
| col1      |
+-----------+
|     00001 | 
|     10001 | 
| 100000001 | 
+-----------+
3 rows in set (0.01 sec)