Rank of INDONESIA in dictionary and 61st letter when arranged

[juantheron]

If all the letters of the world $\bf{\mathbb{INDONESIA}}$ are arrange in a English Dictonary, Then

$(a)\;\; $ Rank of The word $\bf{\mathbb{INDONESIA}}$

$(b)\;\; 61^{th}$ Letter in Dictonary araanging $\bf{\mathbb{INDONESIA}}$

 

[Advent]

You may find this link interesting Surya's Blog!: Finding Rank of a Word: With Repetition