Insert commas suitably and write the names according to the International numeration system :

$100100100$

Inserting commas

$100,100,100$

Writing the name based on International numeration system

$\mathrm{One}\mathrm{hundred}\mathrm{million}\mathrm{one}\mathrm{hundred}\mathrm{thousand}\mathrm{one}\mathrm{hundred}.$

Hence the answer are $100,100,100$ and $\mathrm{One}\mathrm{hundred}\mathrm{million}\mathrm{one}\mathrm{hundred}\mathrm{thousand}\mathrm{one}\mathrm{hundred}.$