The successor of 1 million is
2 millions
1000001
100001
10001
Successor means the next number. To get it, we add 1.
Start number:
\(1\text{ million} = 1{,}000{,}000\)
Add 1:
\(1{,}000{,}000\)
\(+\;1\)
\(=\;1{,}000{,}001\)
Therefore, the successor is \(1{,}000{,}001\). This matches option B.