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12201201120012 = 2236121683768727
BaseRepresentation
bin1011000110001101000001…
…0000100011001100001100
31121012102102200111000012020
42301203100100203030030
53044401024441320022
641541053204210140
72366336065221102
oct261432020431414
947172380430166
1012201201120012
113984555a47273
121450811699950
136a6750805c58
14302781401c72
151625aba5235c
hexb18d042330c

12201201120012 has 48 divisors (see below), whose sum is σ = 28937554044672. Its totient is φ = 4000204111680.

The previous prime is 12201201119971. The next prime is 12201201120041. The reversal of 12201201120012 is 21002110210221.

It is a junction number, because it is equal to n+sod(n) for n = 12201201119973 and 12201201120000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15487593 + ... + 16256319.

It is an arithmetic number, because the mean of its divisors is an integer number (602865709264).

Almost surely, 212201201120012 is an apocalyptic number.

12201201120012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12201201120012 is an abundant number, since it is smaller than the sum of its proper divisors (16736352924660).

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

12201201120012 is a wasteful number, since it uses less digits than its factorization.

12201201120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790478 (or 790476 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12201201120012 its reverse (21002110210221), we get a palindrome (33203311330233).

The spelling of 12201201120012 in words is "twelve trillion, two hundred one billion, two hundred one million, one hundred twenty thousand, twelve".

Divisors: 1 2 3 4 6 12 61 122 183 244 366 732 21683 43366 65049 86732 130098 260196 768727 1322663 1537454 2306181 2645326 3074908 3967989 4612362 5290652 7935978 9224724 15871956 46892347 93784694 140677041 187569388 281354082 562708164 16668307541 33336615082 50004922623 66673230164 100009845246 200019690492 1016766760001 2033533520002 3050300280003 4067067040004 6100600560006 12201201120012