Numbers

Counting!

One Ichi
Two Ni
Three San
Four Shi or Yon
Five Go
Six Roku
Seven Shichi or Nana
Eight Hachi
Nine Ku or Kyuu
Ten Juu
Hundred Hyaku
Thousand Sen

From here we can count to 9,999. To say 20 we would simply say "Ni Juu" and for 30 we would say "San Juu". For 22 it is "Ni Juu Ni". To say 222 it is Ni Hyaku Ni Juu Ni. For 2222 it is Ni Sen Ni Hyaku Ni Juu Ni.