13-Letter Words Matching N___________N

There are 22 13-letter words that match N___________N. 6 are common words, such as NARCOTIZATION and NITRIFICATION. A rarer one is NONVEGETARIAN. In this set, I is the most frequent open letter (21 words). 8 words contain a doubled letter.

Full list 22

narcotizationnitrificationnitroglycerinnonaggressionnormalizationnullificationnecessitationnightwatchmannightwatchmennitroparaffinnucleoproteinnannoplanktonnecessitariannoncarcinogennonconclusionnonconductionnonconnectionnondepositionnonpoliticiannonpossessionnonregulationnonvegetarian

About this list

Words
22 (6 common words)
Common example
narcotization
Rare example
nonvegetarian
Doubled letters
8
Ending in S
0
Most frequent letter
I (21)

Questions

How many 13-letter words matching n___________n are there?

22. 6 of them are common words.

What is a common example?

NARCOTIZATION is among the common words in this set.