Does the subject want to ask "What is the population of Tongliao in 2121?". By 2121, Tongliao has a population of 3.377 million. According to the statistics of the United Nations in 2121, the population of China has exceeded 1.4 billion, making it the most populous country in the world. According to statistics, the population of China accounts for about 18% of the global population. However, in recent years, the population growth rate in China has gradually slowed down, mainly because the government has implemented a series of family planning policies, encouraged healthy marriage and childbearing, and improved social welfare.