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20012102211200 = 275211568525631
BaseRepresentation
bin1001000110011011011100…
…01111100101011010000000
32121212010201210220112102012
410203031232033211122000
510110334241131224300
6110321233254312052
74133553356100311
oct443155617453200
977763653815365
1020012102211200
1164160a2a90480
1222b2590658628
13b22196684658
144d283b684608
1524a862596435
hex12336e3e5680

20012102211200 has 96 divisors (see below), whose sum is σ = 53930341451520. Its totient is φ = 7277128064000.

The previous prime is 20012102211197. The next prime is 20012102211263. The reversal of 20012102211200 is 211220121002.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 284227616 + ... + 284298015.

It is an arithmetic number, because the mean of its divisors is an integer number (561774390120).

Almost surely, 220012102211200 is an apocalyptic number.

20012102211200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012102211200 is an abundant number, since it is smaller than the sum of its proper divisors (33918239240320).

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

20012102211200 is a wasteful number, since it uses less digits than its factorization.

20012102211200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568525666 (or 568525649 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20012102211200 its reverse (211220121002), we get a palindrome (20223322332202).

The spelling of 20012102211200 in words is "twenty trillion, twelve billion, one hundred two million, two hundred eleven thousand, two hundred".

Divisors: 1 2 4 5 8 10 11 16 20 22 25 32 40 44 50 55 64 80 88 100 110 128 160 176 200 220 275 320 352 400 440 550 640 704 800 880 1100 1408 1600 1760 2200 3200 3520 4400 7040 8800 17600 35200 568525631 1137051262 2274102524 2842628155 4548205048 5685256310 6253781941 9096410096 11370512620 12507563882 14213140775 18192820192 22741025240 25015127764 28426281550 31268909705 36385640384 45482050480 50030255528 56852563100 62537819410 72771280768 90964100960 100060511056 113705126200 125075638820 156344548525 181928201920 200121022112 227410252400 250151277640 312689097050 363856403840 400242044224 454820504800 500302555280 625378194100 800484088448 909641009600 1000605110560 1250756388200 1819282019200 2001210221120 2501512776400 4002420442240 5003025552800 10006051105600 20012102211200