Capacitor manufacturers generally give the value of capacitor on capacitor but, in some cases there may be not enough space. In that case, they use simple notation. If it is 2 digits number then no issues. You can say the value seen is the value on capacitor. But if it has 3 digits then the first two digit you take as is and remaining last digit is the number of zeros following that first two digits. See table below;

DIGITS

CAPACITANCE (pF)

101

100

221

220

471

470

102

1000

222

2200

472

4700

103

10000

223

22000

473

47000

104

100000

224

220000

474

470000

105

1000000

225

2200000

Another notation on capacitor is tolerance. See table below;