119 is the number to dial in case of fire emergency in China.
110 is a number to dial in case of public security or order emergencies. The character 盗 means roberry or steal and 警 means alarm or police.
120 is the number to dial in case of medical emergency in China.
By convention, the number 1 is pronounced as "yao1" when it is enumerated. When counting, people will pronunce it as "yi1".