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12201212012012 = 2228336683293827
BaseRepresentation
bin1011000110001101000011…
…1010000110010111101100
31121012102110102222101012122
42301203100322012113230
53044401040233341022
641541054233452112
72366336256624152
oct261432072062754
947172412871178
1012201212012012
113984561106621
121450815271038
136a6752b4a81a
14302782a393d2
151625ac9a4742
hexb18d0e865ec

12201212012012 has 24 divisors (see below), whose sum is σ = 21428227267776. Its totient is φ = 6078862687248.

The previous prime is 12201212011993. The next prime is 12201212012021. The reversal of 12201212012012 is 21021021210221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41378243 + ... + 41672069.

It is an arithmetic number, because the mean of its divisors is an integer number (892842802824).

Almost surely, 212201212012012 is an apocalyptic number.

It is an amenable number.

12201212012012 is a deficient number, since it is larger than the sum of its proper divisors (9227015255764).

12201212012012 is a wasteful number, since it uses less digits than its factorization.

12201212012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330797 (or 330795 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12201212012012 its reverse (21021021210221), we get a palindrome (33222233222233).

The spelling of 12201212012012 in words is "twelve trillion, two hundred one billion, two hundred twelve million, twelve thousand, twelve".

Divisors: 1 2 4 283 566 1132 36683 73366 146732 293827 587654 1175308 10381289 20762578 41525156 83153041 166306082 332612164 10778455841 21556911682 43113823364 3050303003003 6100606006006 12201212012012