  A systematic study on the alpha decay half lives of various isotopes of
superheavy element \textit{Z} = 121 within the range 290 $\leq$ A $\leq$ 339 is
presented for the first time using Coulomb and proximity potential model for
deformed nuclei (CPPMDN). The calculated $\alpha$ decay half lives of the
isotopes within our formalism match well with the values computed using
Viola-Seaborg systematic, Universal curve of Poenaru et al., and the analytical
formula of Royer. In our study by comparing the $\alpha$ decay half lives with
the spontaneous fission half lives, we have predicted $2\alpha$ chain from
$^{309, 311, 312}$121, $3\alpha$ chain from $^{310}$121 and $1\alpha$ chain
from $^{313, 314}$121. Clearly our study shows that the isotopes of superheavy
element \textit{Z} = 121 within the mass range 309 $\leq$ A $\leq$ 314 will
survive fission and can be synthesized and detected in the laboratory via alpha
decay. We hope that our predictions will provide a new guide to future
experiments.
