centillion zeros (centillion is 303 zeros)
A centillionplex is a 1 followed by a centillion zeroes.
about 32,000,000 centillionplex.
1 centillionplex.
One centillion.
Yes, it is impossible to write centillionplex (a 1 with a centillion zeros behind it) down in number form, because there's not enough room to write all the zeros in.