Of course. According to the writing requirements of numbers in the inquiry paper, we can know that Arabic numerals can be used to represent century, time, numbers before quantifiers, calculated numbers and so on. Moreover, Chinese characters should be used when numbers appear as morphemes and two adjacent numbers are used side by side continuously. 122 is not used as morphemes or continuously, so it is ok. Thesis is a Chinese word, and its pinyin is lùnwén, which is a common word in classical literature and refers to conversation or exchange of ideas.