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|---|---|---|---|---|
| 国道222号 | ||||
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| Route information | ||||
| Length | 55.2 km[1] (34.3 mi) | |||
| Existed | 18 May 1953–present | |||
| Major junctions | ||||
| West end |  National Route 10 in Miyakonojō | |||
| East end |  National Route 220 in Nichinan | |||
| Location | ||||
| Country | Japan | |||
| Highway system | ||||
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National Route 222 is a national highway of Japan connecting Nichinan and Miyakonojō in Japan, with a total length of 55.2 km (34.3 mi).
- ^ "一般国道の路線別、都道府県別道路現況" [Road statistics by General National Highway route and prefecture] (PDF) (in Japanese). Ministry of Land, Infrastructure, Transport and Tourism. Retrieved 18 February 2020.