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12020100220220 = 2254312192963589
BaseRepresentation
bin1010111011101010010111…
…0011011100010100111100
31120120002222110012002100012
42232322211303130110330
53033414131124021340
641321542515322352
72350265201036441
oct256724563342474
946502873162305
1012020100220220
113914772235854
1214216ab2b03b8
1369264ba87311
142d7ac13119c8
1515ca0c886565
hexaeea5cdc53c

12020100220220 has 48 divisors (see below), whose sum is σ = 25302328732800. Its totient is φ = 4796590364160.

The previous prime is 12020100220217. The next prime is 12020100220231. The reversal of 12020100220220 is 2202200102021.

It is a junction number, because it is equal to n+sod(n) for n = 12020100220195 and 12020100220204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188996186 + ... + 189059774.

It is an arithmetic number, because the mean of its divisors is an integer number (527131848600).

Almost surely, 212020100220220 is an apocalyptic number.

12020100220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020100220220 is an abundant number, since it is smaller than the sum of its proper divisors (13282228512580).

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

12020100220220 is a wasteful number, since it uses less digits than its factorization.

12020100220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85958 (or 85956 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12020100220220 its reverse (2202200102021), we get a palindrome (14222300322241).

The spelling of 12020100220220 in words is "twelve trillion, twenty billion, one hundred million, two hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 431 862 1724 2155 4310 8620 21929 43858 63589 87716 109645 127178 219290 254356 317945 438580 635890 1271780 9451399 18902798 27406859 37805596 47256995 54813718 94513990 109627436 137034295 189027980 274068590 548137180 1394443181 2788886362 5577772724 6972215905 13944431810 27888863620 601005011011 1202010022022 2404020044044 3005025055055 6010050110110 12020100220220