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12122020212200 = 2352197343698703
BaseRepresentation
bin1011000001100110000010…
…1101010110110111101000
31120220212001102122010102222
42300121200231112313220
53042101344133242300
641440440150413212
72360533650501263
oct260314055266750
946825042563388
1012122020212200
113953a13431288
1214393b4061208
1369c1422aa192
142dc9cd361cda
151604c542c785
hexb0660b56de8

12122020212200 has 96 divisors (see below), whose sum is σ = 30073448092800. Its totient is φ = 4530681423360.

The previous prime is 12122020212199. The next prime is 12122020212227. The reversal of 12122020212200 is 221202022121.

It is a happy 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, 21571952 + ... + 22126751.

It is an arithmetic number, because the mean of its divisors is an integer number (313265084300).

Almost surely, 212122020212200 is an apocalyptic number.

12122020212200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122020212200 is an abundant number, since it is smaller than the sum of its proper divisors (17951427880600).

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

12122020212200 is a wasteful number, since it uses less digits than its factorization.

12122020212200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43698811 (or 43698802 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12122020212200 its reverse (221202022121), we get a palindrome (12343222234321).

The spelling of 12122020212200 in words is "twelve trillion, one hundred twenty-two billion, twenty million, two hundred twelve thousand, two hundred".

Divisors: 1 2 4 5 8 10 19 20 25 38 40 50 73 76 95 100 146 152 190 200 292 365 380 475 584 730 760 950 1387 1460 1825 1900 2774 2920 3650 3800 5548 6935 7300 11096 13870 14600 27740 34675 55480 69350 138700 277400 43698703 87397406 174794812 218493515 349589624 436987030 830275357 873974060 1092467575 1660550714 1747948120 2184935150 3190005319 3321101428 4151376785 4369870300 6380010638 6642202856 8302753570 8739740600 12760021276 15950026595 16605507140 20756883925 25520042552 31900053190 33211014280 41513767850 60610101061 63800106380 79750132975 83027535700 121220202122 127600212760 159500265950 166055071400 242440404244 303050505305 319000531900 484880808488 606101010610 638001063800 1212202021220 1515252526525 2424404042440 3030505053050 6061010106100 12122020212200