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12002002221212 = 2259932621153557
BaseRepresentation
bin1010111010100110111100…
…0101000011100010011100
31120111101021011121110221122
42232221233011003202130
53033120100032034322
641305351012350112
72346054542425103
oct256515705034234
946441234543848
1012002002221212
1139080253a9283
12141a09a315338
13690a26463c73
142d6c8589503a
1515c2edac1442
hexaea6f14389c

12002002221212 has 24 divisors (see below), whose sum is σ = 21039350119200. Its totient is φ = 5990760077120.

The previous prime is 12002002221047. The next prime is 12002002221217. The reversal of 12002002221212 is 21212220020021.

It is a happy number.

12002002221212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002002221217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78083138 + ... + 78236694.

It is an arithmetic number, because the mean of its divisors is an integer number (876639588300).

Almost surely, 212002002221212 is an apocalyptic number.

It is an amenable number.

12002002221212 is a deficient number, since it is larger than the sum of its proper divisors (9037347897988).

12002002221212 is a wasteful number, since it uses less digits than its factorization.

12002002221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186781 (or 186779 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12002002221212 its reverse (21212220020021), we get a palindrome (33214222241233).

The spelling of 12002002221212 in words is "twelve trillion, two billion, two million, two hundred twenty-one thousand, two hundred twelve".

Divisors: 1 2 4 599 1198 2396 32621 65242 130484 153557 307114 614228 19539979 39079958 78159916 91980643 183961286 367922572 5009182897 10018365794 20036731588 3000500555303 6001001110606 12002002221212