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12101102201200 = 2452471993234551
BaseRepresentation
bin1011000000011000000111…
…1001011110100101110000
31120211212001121201001211211
42300012001321132211300
53041231024130414300
641423100345045504
72356163410362415
oct260060171364560
946755047631754
1012101102201200
113946059798a91
121435336786894
1369a18a670b8c
142db9a719210c
1515eb9dcc84ba
hexb0181e5e970

12101102201200 has 120 divisors (see below), whose sum is σ = 29840682931200. Its totient is φ = 4713645024000.

The previous prime is 12101102201197. The next prime is 12101102201249. The reversal of 12101102201200 is 210220110121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2123925 + ... + 5358475.

It is an arithmetic number, because the mean of its divisors is an integer number (248672357760).

Almost surely, 212101102201200 is an apocalyptic number.

12101102201200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12101102201200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14920341465600).

12101102201200 is an abundant number, since it is smaller than the sum of its proper divisors (17739580730000).

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

12101102201200 is a wasteful number, since it uses less digits than its factorization.

12101102201200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3234815 (or 3234804 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12101102201200 its reverse (210220110121), we get a palindrome (12311322311321).

The spelling of 12101102201200 in words is "twelve trillion, one hundred one billion, one hundred two million, two hundred one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 47 50 80 94 100 188 199 200 235 376 398 400 470 752 796 940 995 1175 1592 1880 1990 2350 3184 3760 3980 4700 4975 7960 9353 9400 9950 15920 18706 18800 19900 37412 39800 46765 74824 79600 93530 149648 187060 233825 374120 467650 748240 935300 1870600 3234551 3741200 6469102 12938204 16172755 25876408 32345510 51752816 64691020 80863775 129382040 152023897 161727550 258764080 304047794 323455100 608095588 643675649 646910200 760119485 1216191176 1287351298 1293820400 1520238970 2432382352 2574702596 3040477940 3218378245 3800597425 5149405192 6080955880 6436756490 7601194850 10298810384 12161911760 12873512980 15202389700 16091891225 25747025960 30252755503 30404779400 32183782450 51494051920 60505511006 60809558800 64367564900 121011022012 128735129800 151263777515 242022044024 257470259600 302527555030 484044088048 605055110060 756318887575 1210110220120 1512637775150 2420220440240 3025275550300 6050551100600 12101102201200