code: public final String prnNumberNtz(final String pNumber, final String pDigSep,
      final String pDigGrSep, final Integer pDigitsInGroup) {
      return this.srvNumberToString.printNtz(pNumber, pDigSep, pDigGrSep,
        pDigitsInGroup);
    }
docs: <p>Prints number formatted by given decimal separator, decimal group
  separator, digits in group without trailing zeros.</p>
  @param pNumber e.g. "1214.10"
  @param pDigSep decimal separator, e.g. ","
  @param pDigGrSep decimal group separator, e.g. " "
  @param pDigitsInGroup Digits in group, e.g. 3
  @return internationalized number without trailing zeros , e.g. "12 14,1"