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212021201200 = 24521707731039
BaseRepresentation
bin1100010101110101110…
…0101100100100110000
3202021021010021222102111
43011131130230210300
511433204411414300
6241222354055104
721214040321554
oct3053534544460
9667233258374
10212021201200
1181a10493626
123511157a494
1316cbb997a93
14a39485b864
1557ad9d19ba
hex315d72c930

212021201200 has 60 divisors (see below), whose sum is σ = 509427176320. Its totient is φ = 84800782080.

The previous prime is 212021201173. The next prime is 212021201201. The reversal of 212021201200 is 2102120212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (212021201201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6815281 + ... + 6846319.

Almost surely, 2212021201200 is an apocalyptic number.

212021201200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212021201200 is an abundant number, since it is smaller than the sum of its proper divisors (297405975120).

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

212021201200 is a wasteful number, since it uses less digits than its factorization.

212021201200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48134 (or 48123 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 212021201200 its reverse (2102120212), we get a palindrome (214123321412).

The spelling of 212021201200 in words is "two hundred twelve billion, twenty-one million, two hundred one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 17077 31039 34154 62078 68308 85385 124156 136616 155195 170770 248312 273232 310390 341540 426925 496624 620780 683080 775975 853850 1241560 1366160 1551950 1707700 2483120 3103900 3415400 6207800 6830800 12415600 530053003 1060106006 2120212012 2650265015 4240424024 5300530030 8480848048 10601060060 13251325075 21202120120 26502650150 42404240240 53005300300 106010600600 212021201200