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12220230331320 = 23351164714308733
BaseRepresentation
bin1011000111010011111001…
…1111001110101110111000
31121021020112212022002201020
42301310332133032232320
53100204012431100240
641553521334222440
72400611461646214
oct261647637165670
947236485262636
1012220230331320
113991630494390
1214544424b4a20
136a84940306bb
143036687c1944
15162d2245c0d0
hexb1d3e7cebb8

12220230331320 has 128 divisors (see below), whose sum is σ = 40055297610240. Its totient is φ = 2957901079040.

The previous prime is 12220230331301. The next prime is 12220230331343. The reversal of 12220230331320 is 2313303202221.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6300327 + ... + 8008406.

It is an arithmetic number, because the mean of its divisors is an integer number (312932012580).

Almost surely, 212220230331320 is an apocalyptic number.

12220230331320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220230331320 is an abundant number, since it is smaller than the sum of its proper divisors (27835067278920).

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

12220230331320 is a wasteful number, since it uses less digits than its factorization.

12220230331320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14309405 (or 14309401 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 12220230331320 its reverse (2313303202221), we get a palindrome (14533533533541).

The spelling of 12220230331320 in words is "twelve trillion, two hundred twenty billion, two hundred thirty million, three hundred thirty-one thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 33 40 44 55 60 66 88 110 120 132 165 220 264 330 440 647 660 1294 1320 1941 2588 3235 3882 5176 6470 7117 7764 9705 12940 14234 15528 19410 21351 25880 28468 35585 38820 42702 56936 71170 77640 85404 106755 142340 170808 213510 284680 427020 854040 14308733 28617466 42926199 57234932 71543665 85852398 114469864 143087330 157396063 171704796 214630995 286174660 314792126 343409592 429261990 472188189 572349320 629584252 786980315 858523980 944376378 1259168504 1573960630 1717047960 1888752756 2360940945 3147921260 3777505512 4721881890 6295842520 9257750251 9443763780 18515500502 18887527560 27773250753 37031001004 46288751255 55546501506 74062002008 92577502510 101835252761 111093003012 138866253765 185155005020 203670505522 222186006024 277732507530 305505758283 370310010040 407341011044 509176263805 555465015060 611011516566 814682022088 1018352527610 1110930030120 1222023033132 1527528791415 2036705055220 2444046066264 3055057582830 4073410110440 6110115165660 12220230331320