Sorry if I'm becoming a bore and labouring the point but it (ken) was probably still fresh in my mind from its use in the wordplay of 26d in last Saturday's Listener crossword.
Hi BBM2, it's straightforward in an android phone Google keyboard. Just depress and holdthe "2" key and it comes up as an option. Same goes for, graves, accents, ccircumflexes, umlauts etc.