Ununseptium Ionization Energy

The Ununseptium Ionization Energy is the energy required to remove from atom one mole of electrons with subsequent production of positively charged ion of Ununseptium.
Uus -> Uus⁺ + e^-
This process can be repeated many times, but the energy cost is increased dramatically. The general equation for the Ununseptium is:
Uus^N+ -> Uus^(N+1)+ + e^-

There is no data about Ununseptium ionization energy