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12122102020108 = 22113165731618223
BaseRepresentation
bin1011000001100110010110…
…0101011011100000001100
31120220212021010120101210111
42300121211211123200030
53042102031104120413
641440452232045404
72360535663034303
oct260314545334014
946825233511714
1012122102020108
113953a55627823
121439417533864
1369c156221422
142dc9da17943a
151604cc6dbd3d
hexb066595b80c

12122102020108 has 24 divisors (see below), whose sum is σ = 21402714771648. Its totient is φ = 6007047196416.

The previous prime is 12122102020073. The next prime is 12122102020109. The reversal of 12122102020108 is 80102020122121.

It is not an unprimeable number, because it can be changed into a prime (12122102020109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6681885 + ... + 8300107.

It is an arithmetic number, because the mean of its divisors is an integer number (891779782152).

Almost surely, 212122102020108 is an apocalyptic number.

It is an amenable number.

12122102020108 is a deficient number, since it is larger than the sum of its proper divisors (9280612751540).

12122102020108 is a wasteful number, since it uses less digits than its factorization.

12122102020108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634913 (or 1634911 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 12122102020108 its reverse (80102020122121), we get a palindrome (92224122142229).

The spelling of 12122102020108 in words is "twelve trillion, one hundred twenty-two billion, one hundred two million, twenty thousand, one hundred eight".

Divisors: 1 2 4 113 226 452 16573 33146 66292 1618223 1872749 3236446 3745498 6472892 7490996 182859199 365718398 731436796 26818809779 53637619558 107275239116 3030525505027 6061051010054 12122102020108