[en] The superheavy nuclei (SHN) are characterized by the extreme value of proton number Z and their long lived existence is described with the help of strong shell stabilization. A number of various experimental facilities have done for synthesization of SHN with Z = 112 and Z = 117 with different approaches at GSI. In this work, the neutron shell closure is obtained with SSC scheme along with ground state properties using Co-variant Energy Density Functionals (CEDFs) with DD-ME2 and DD-PC1. An excellent forecast and successful results have been achieved using these two parameters in earlier study. Covered herewith is the isotopic series of Z=122 and Z=128 for neutron number varying from 158 to 218, and 162 to 212, respectively