Charmonium production in pp, pPb and PbPb with CMS

We report on the analysis of charmonia in pp, pPb and PbPb collisions with the CMS experiment with various observables. The cross section for coherent J/$\psi$ photoproduction is measured in ultra-peripheral PbPb collisions at 2.76 TeV. The ratio of yields at forward (proton-going direction) and backward (Pb-going direction) is studied as a function of $p_{\rm T}$, rapidity, and the event activity in pPb collisions at 5.02 TeV. The nuclear modification factor of prompt J/$\psi$ in PbPb collisions at 2.76 TeV is presented as a function of centrality, $p_{\rm T}$, and rapidity. Finally, the production yields of $\psi$(2S) and J/$\psi$ in pp and PbPb collisions have been compared