A320 has initial LOV/Limit of Validity 60.000 FH / 48.000 FC.
There is a certified life extension programme (ESG) which brings LOV to 120.000 FH / 60.000 FC.
I know Lufthansa did ESG on some of their aircraft but don't know about this particular one as it has not hit the original LOV yet.
In regards why this aircraft was transferred to Germanwings not sold - there is no such thing as second-hand ex LH A320 aircraft. All units either flown by LH or transferred to Germanwings/Eurowings. LH mainline still operates a bunch of 1989 production units (msn 006x/007x/008x)