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12102000122220 = 22352237505117851
BaseRepresentation
bin1011000000011011011101…
…1010110001100101101100
31120211221101012022011220220
42300012313122301211230
53041234344012402340
641423325422411340
72356224562522101
oct260066732614554
946757335264826
1012102000122220
11394647a630378
121435547430b50
1369a2a16ba1a8
142dba5052aaa8
1515ec02a43ed0
hexb01b76b196c

12102000122220 has 96 divisors (see below), whose sum is σ = 33909359291136. Its totient is φ = 3224938080000.

The previous prime is 12102000122197. The next prime is 12102000122221. The reversal of 12102000122220 is 2222100020121.

12102000122220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12102000122220.

It is not an unprimeable number, because it can be changed into a prime (12102000122221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 677936295 + ... + 677954145.

It is an arithmetic number, because the mean of its divisors is an integer number (353222492616).

Almost surely, 212102000122220 is an apocalyptic number.

12102000122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102000122220 is an abundant number, since it is smaller than the sum of its proper divisors (21807359168916).

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

12102000122220 is a wasteful number, since it uses less digits than its factorization.

12102000122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25151 (or 25149 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12102000122220 its reverse (2222100020121), we get a palindrome (14324100142341).

The spelling of 12102000122220 in words is "twelve trillion, one hundred two billion, one hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2237 4474 5051 6711 8948 10102 11185 13422 15153 17851 20204 22370 25255 26844 30306 33555 35702 44740 50510 53553 60612 67110 71404 75765 89255 101020 107106 134220 151530 178510 214212 267765 303060 357020 535530 1071060 11299087 22598174 33897261 39932687 45196348 56495435 67794522 79865374 90165401 112990870 119798061 135589044 159730748 169486305 180330802 199663435 225981740 239596122 270496203 338972610 360661604 399326870 450827005 479192244 540992406 598990305 677945220 798653740 901654010 1081984812 1197980610 1352481015 1803308020 2395961220 2704962030 5409924060 201700002037 403400004074 605100006111 806800008148 1008500010185 1210200012222 2017000020370 2420400024444 3025500030555 4034000040740 6051000061110 12102000122220