What is the relationship between Surah Maryam and the name Ar-Rahman?

While reading Surah Maryam (AS), I noticed the uniquely high amount of times the name of Allah Ar-Rahman (the Most Merciful) is used. The name Ar-Rahman appears in Surah Maryam 12 times out of a total of 33 times in the Quran. Doing some quick math, Surah Maryam contains about 1% of the words of the Quran but contains about 36% of the mentions of the name Ar-Rahman. **What is the significance of this? Have any past or present scholars discussed it?**