The question, as stated, cannot be answered sensibly. A square metre is a measure of area, with dimensions [L2]. A metre is a measure of distance, with dimensions [L]. The two measure different...
There are 1000 metres in one kilometre. Therefore, 22 kilometres is equal to 22 x 1000 = 22000 metres.
1 km = 1000 metres so 22 km = 1000*22 metres.
22 m = 0.022 km
1 kilometre = 1000 metres. You now have all the information required to work out, for yourself, the answer to this and similar questions.