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120221222020020 = 223251160717788899
BaseRepresentation
bin11011010101011100101111…
…001110111010001110110100
3120202200000222200001001000100
4123111130233032322032310
5111224201030314120040
61103404511132314100
734215460645264512
oct3325345716721664
9522600880031010
10120221222020020
1135340596740130
1211597818012930
135210a74357934
142198a498594b2
15dd736ac80b30
hex6d572f3ba3b4

120221222020020 has 72 divisors (see below), whose sum is σ = 397822952872800. Its totient is φ = 29144538671040.

The previous prime is 120221222020007. The next prime is 120221222020051. The reversal of 120221222020020 is 20020222122021.

120221222020020 is a `hidden beast` number, since 1 + 2 + 0 + 221 + 2 + 220 + 200 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 120221222019975 and 120221222020002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30358892470 + ... + 30358896429.

It is an arithmetic number, because the mean of its divisors is an integer number (5525318789900).

Almost surely, 2120221222020020 is an apocalyptic number.

120221222020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120221222020020 is an abundant number, since it is smaller than the sum of its proper divisors (277601730852780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120221222020020 is a wasteful number, since it uses less digits than its factorization.

120221222020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60717788925 (or 60717788920 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 120221222020020 its reverse (20020222122021), we get a palindrome (140241444142041).

It can be divided in two parts, 1202212 and 22020020, that added together give a palindrome (23222232).

The spelling of 120221222020020 in words is "one hundred twenty trillion, two hundred twenty-one billion, two hundred twenty-two million, twenty thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 11 12 15 18 20 22 30 33 36 44 45 55 60 66 90 99 110 132 165 180 198 220 330 396 495 660 990 1980 60717788899 121435577798 182153366697 242871155596 303588944495 364306733394 546460100091 607177888990 667895677889 728613466788 910766833485 1092920200182 1214355777980 1335791355778 1821533666970 2003687033667 2185840400364 2671582711556 2732300500455 3339478389445 3643067333940 4007374067334 5464601000910 6011061101001 6678956778890 8014748134668 10018435168335 10929202001820 12022122202002 13357913557780 20036870336670 24044244404004 30055305505005 40073740673340 60110611010010 120221222020020