One Hundred Thousand, Hundred Thousand
numeral
Ten ten thousands is equal to one hundred thousand.
じゅうまん
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
このアパートは月に十万円くらいです。
This apartment costs about 100,000 yen a month.
ニューヨークへのフライトで十万マイルもらった。
I got 100,000 miles from a flight to New York.
あの女の子、十万人もフォロワーがいるんだって。
That girl has hundreds of thousands followers, apparently.