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212011212101200 = 24524112927512933
BaseRepresentation
bin110000001101001010110100…
…111111000101011001010000
31000210200001222220020220202021
4300031022310333011121100
5210242042430244214300
62030524334541501224
762441206322530651
oct6015126477053120
91023601886226667
10212011212101200
116160a4a5123796
121b941239b71814
13913b757809475
143a4d57c725528
151979d71498d1a
hexc0d2b4fc5650

212011212101200 has 60 divisors (see below), whose sum is σ = 521780277042108. Its totient is φ = 82736082764800.

The previous prime is 212011212101177. The next prime is 212011212101209. The reversal of 212011212101200 is 2101212110212.

It can be written as a sum of positive squares in 6 ways, for example, as 272742973504 + 211738469127696 = 522248^2 + 14551236^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212011212101209) 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, 6463740067 + ... + 6463772866.

Almost surely, 2212011212101200 is an apocalyptic number.

212011212101200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212011212101200 is an abundant number, since it is smaller than the sum of its proper divisors (309769064940908).

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

212011212101200 is a wasteful number, since it uses less digits than its factorization.

212011212101200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12927512992 (or 12927512981 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212011212101200 its reverse (2101212110212), we get a palindrome (214112424211412).

The spelling of 212011212101200 in words is "two hundred twelve trillion, eleven billion, two hundred twelve million, one hundred one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 41 50 80 82 100 164 200 205 328 400 410 656 820 1025 1640 2050 3280 4100 8200 16400 12927512933 25855025866 51710051732 64637564665 103420103464 129275129330 206840206928 258550258660 323187823325 517100517320 530028030253 646375646650 1034201034640 1060056060506 1292751293300 2120112121012 2585502586600 2650140151265 4240224242024 5171005173200 5300280302530 8480448484048 10600560605060 13250700756325 21201121210120 26501401512650 42402242420240 53002803025300 106005606050600 212011212101200