static const CAmount COIN = 100000000;
static const CAmount CENT = 1000000;
Presumably, in the source code of Litecoin Core, a "coin" is defined as one hundred million and a "cent" as one hundredth of that (i.e., one million). Integers do not have units (by default); however, laypeople often (at least, in effect) define a "satoshi" (or "litoshi", etc.) as one (so as to concatenate a unit onto these integers).