A certain nine digit number has only ones in ones period,only two’s in the thousand period and only threes in millions period .Write this number in words in the Indian system

To write a certain nine-digit number with specific patterns in words using the Indian system, we can break it down into three periods: millions, thousands, and ones.

In the millions period, we have only threes. Since there are no other digits mentioned, we can assume that all the digits in this period are threes. So, we can write this period as "Three million".

In the thousands period, we have only twos. Again, assuming that all the digits in this period are twos, we can write it as "Two thousand".

In the ones period, we have only ones. Similarly, assuming all the digits in this period are ones, we can write it as "One".

By combining the periods, we get the number "Three million, two thousand, one" in words in the Indian system.

The given nine-digit number can be written in words in the Indian system as follows:

3 Crore 32 Lakh 21 Thousand 111