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12012211020212 = 2213719321285199
BaseRepresentation
bin1010111011001100111110…
…0100100010000110110100
31120112100121122021012110022
42232303033210202012310
53033302002010121322
641314200014344312
72346565533662354
oct256631744420664
946470548235408
1012012211020212
113911393a66047
1214200691bb098
13691992499730
142d757364ab64
1515c6e9e75942
hexaeccf9221b4

12012211020212 has 24 divisors (see below), whose sum is σ = 22669883712000. Its totient is φ = 5536386531936.

The previous prime is 12012211020181. The next prime is 12012211020221. The reversal of 12012211020212 is 21202011221021.

12012211020212 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 an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160605212 + ... + 160679987.

It is an arithmetic number, because the mean of its divisors is an integer number (944578488000).

Almost surely, 212012211020212 is an apocalyptic number.

It is an amenable number.

12012211020212 is a deficient number, since it is larger than the sum of its proper divisors (10657672691788).

12012211020212 is a wasteful number, since it uses less digits than its factorization.

12012211020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321285935 (or 321285933 counting only the distinct ones).

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

Adding to 12012211020212 its reverse (21202011221021), we get a palindrome (33214222241233).

The spelling of 12012211020212 in words is "twelve trillion, twelve billion, two hundred eleven million, twenty thousand, two hundred twelve".

Divisors: 1 2 4 13 26 52 719 1438 2876 9347 18694 37388 321285199 642570398 1285140796 4176707587 8353415174 16706830348 231004058081 462008116162 924016232324 3003052755053 6006105510106 12012211020212