Inner Mongolia or Nei Mongol, officially the Inner Mongolia Autonomous Region, is a landlocked and Mongolic autonomous region of the People's Republic of China. Its border includes most of the length of China's border with the country of Mongolia. Inner Mongolia also accounts for a small section of China's border with Russia (Zabaykalsky Krai). Its capital is Hohhot; other major cities include Baotou, Chifeng, Tongliao and Ordos. The Autonomous Region was established in 1947, incorporating the areas of the former Republic of China provinces of Suiyuan, Chahar, Rehe, Liaobei and Xing'an, along with the northern parts of Gansu and Ningxia. Its area makes it the third largest Chinese administrative subdivision, constituting approximately 1,200,000 km2 (463,000 sq mi) and 12% of China's total land area. Due to its long span from east to west, Inner Mongolia is geographically divided into eastern and western divisions. The eastern division is often included in Northeastern China (former Manchuria) with major cities include Tongliao, Chifeng, Hailaer, Ulanhot. The western division is included in Northwestern China, with major cities include Baotou, Hohhot. It recorded a population of 24,706,321 in the 2010 census, accounting for 1.84% of Mainland China's total population. Inner Mongolia is the country's 23rd most populous province-level division. The majority of the population in the region are Han Chinese, with a sizeable Mongol minority close to 5,000,000 (2019) which is the largest Mongolian population in the world (bigger than that in the country of Mongolia). Inner Mongolia is one of the most economically developed provinces in China with annual GDP per capita close to US$13,000 (2019), often ranked 5th in the nation. The official languages are Mandarin and Mongolian, the latter of which is written in the traditional Mongolian script, as opposed to the Mongolian Cyrillic alphabet, which is used in the state of Mongolia (formerly often described as "Outer Mongolia").