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212011112200 = 23521397626299
BaseRepresentation
bin1100010101110011011…
…0001101011100001000
3202021020102022101220211
43011130312031130020
511433144321042300
6241221353530504
721213555501556
oct3053466153410
9667212271824
10212011112200
1181a05822608
123510a113a34
1316cb9874864
14a393392bd6
1557acb8c4ba
hex315cd8d708

212011112200 has 48 divisors (see below), whose sum is σ = 496472130000. Its totient is φ = 84194329920.

The previous prime is 212011112177. The next prime is 212011112207. The reversal of 212011112200 is 2211110212.

It is not an unprimeable number, because it can be changed into a prime (212011112207) 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, 3785350 + ... + 3840949.

It is an arithmetic number, because the mean of its divisors is an integer number (10343169375).

Almost surely, 2212011112200 is an apocalyptic number.

212011112200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212011112200 is an abundant number, since it is smaller than the sum of its proper divisors (284461017800).

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

212011112200 is a wasteful number, since it uses less digits than its factorization.

212011112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7626454 (or 7626445 counting only the distinct ones).

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

Adding to 212011112200 its reverse (2211110212), we get a palindrome (214222222412).

The spelling of 212011112200 in words is "two hundred twelve billion, eleven million, one hundred twelve thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 139 200 278 556 695 1112 1390 2780 3475 5560 6950 13900 27800 7626299 15252598 30505196 38131495 61010392 76262990 152525980 190657475 305051960 381314950 762629900 1060055561 1525259800 2120111122 4240222244 5300277805 8480444488 10600555610 21201111220 26501389025 42402222440 53002778050 106005556100 212011112200