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212311221301200 = 24352725275145393
BaseRepresentation
bin110000010001100010001110…
…111011010110111111010000
31000211201202101001111100112010
4300101202032323112333100
5210312001340123114300
62031314232324102520
762501656661621430
oct6021421673267720
91024652331440463
10212311221301200
116171575753409a
121b98b406534a40
139160b29509758
143a5dcbcb802c0
151982a7e873a50
hexc1188eed6fd0

212311221301200 has 120 divisors (see below), whose sum is σ = 777261271156288. Its totient is φ = 48528279152640.

The previous prime is 212311221301147. The next prime is 212311221301211. The reversal of 212311221301200 is 2103122113212.

212311221301200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×2123112213012002 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent 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, 12637564297 + ... + 12637581096.

Almost surely, 2212311221301200 is an apocalyptic number.

212311221301200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212311221301200 is an abundant number, since it is smaller than the sum of its proper divisors (564950049855088).

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

212311221301200 is a wasteful number, since it uses less digits than its factorization.

212311221301200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25275145421 (or 25275145410 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 212311221301200 its reverse (2103122113212), we get a palindrome (214414343414412).

The spelling of 212311221301200 in words is "two hundred twelve trillion, three hundred eleven billion, two hundred twenty-one million, three hundred one thousand, two hundred".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 25 28 30 35 40 42 48 50 56 60 70 75 80 84 100 105 112 120 140 150 168 175 200 210 240 280 300 336 350 400 420 525 560 600 700 840 1050 1200 1400 1680 2100 2800 4200 8400 25275145393 50550290786 75825436179 101100581572 126375726965 151650872358 176926017751 202201163144 252751453930 303301744716 353852035502 379127180895 404402326288 505502907860 530778053253 606603489432 631878634825 707704071004 758254361790 884630088755 1011005815720 1061556106506 1213206978864 1263757269650 1415408142008 1516508723580 1769260177510 1895635904475 2022011631440 2123112213012 2527514539300 2653890266265 2830816284016 3033017447160 3538520355020 3791271808950 4246224426024 4423150443775 5055029078600 5307780532530 6066034894320 7077040710040 7582543617900 8492448852048 8846300887550 10110058157200 10615561065060 13269451331325 14154081420080 15165087235800 17692601775100 21231122130120 26538902662650 30330174471600 35385203550200 42462244260240 53077805325300 70770407100400 106155610650600 212311221301200