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1212010201200 = 243525431185971
BaseRepresentation
bin10001101000110001011…
…100000000000001110000
311021212102002000112202010
4101220301130000001300
5124324144102414300
62324442332522520
7153364512504621
oct21506134000160
94255362015663
101212010201200
11428013186007
12176a8b920440
138a3a48b1836
144293963da48
15217d92c3a50
hex11a31700070

1212010201200 has 120 divisors (see below), whose sum is σ = 3883208430976. Its totient is φ = 323141472000.

The previous prime is 1212010201187. The next prime is 1212010201231. The reversal of 1212010201200 is 21020102121.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6424215 + ... + 6610185.

Almost surely, 21212010201200 is an apocalyptic number.

1212010201200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212010201200 is an abundant number, since it is smaller than the sum of its proper divisors (2671198229776).

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

1212010201200 is a wasteful number, since it uses less digits than its factorization.

1212010201200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191423 (or 191412 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1212010201200 its reverse (21020102121), we get a palindrome (1233030303321).

The spelling of 1212010201200 in words is "one trillion, two hundred twelve billion, ten million, two hundred one thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 40 48 50 60 75 80 100 120 150 200 240 300 400 600 1200 5431 10862 16293 21724 27155 32586 43448 54310 65172 81465 86896 108620 130344 135775 162930 185971 217240 260688 271550 325860 371942 407325 434480 543100 557913 651720 743884 814650 929855 1086200 1115826 1303440 1487768 1629300 1859710 2172400 2231652 2789565 2975536 3258600 3719420 4463304 4649275 5579130 6517200 7438840 8926608 9298550 11158260 13947825 14877680 18597100 22316520 27895650 37194200 44633040 55791300 74388400 111582600 223165200 1010008501 2020017002 3030025503 4040034004 5050042505 6060051006 8080068008 10100085010 12120102012 15150127515 16160136016 20200170020 24240204024 25250212525 30300255030 40400340040 48480408048 50500425050 60600510060 75750637575 80800680080 101000850100 121201020120 151501275150 202001700200 242402040240 303002550300 404003400400 606005100600 1212010201200