121202 is a single number: it is not a pattern!
The next number in the pattern is 324. Each number in the pattern is obtained by multiplying the previous number by 3.
52
The next number is 116.
There is no pattern here.
In a number series, you must figure out the "pattern" in order to say what will be the next number. For example, in each of the following number series, say what is the pattern, and what is the next number. 1. 1 3 5 7 Answer: The pattern is to increase the previous number by 2, and the next number is 9. 2. 3 10 31 94 Answer: The pattern is to multiply the previous number by 3, then add 1, and the next number is 283. 3. 100 10 1 0.1 Answer: The pattern is to divide the previous number by 10, and the next number is 0.01.
One number does not make a pattern - no matter how big it is. No pattern so no next numbers in the pattern.
The pattern is +4, 2x, +4, 2x, and so on. The next number is 32.
A single number, such as 1371321 does not make a pattern.
7
It is 99.
80