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12001201210212 = 22310339511245747
BaseRepresentation
bin1010111010100011111101…
…0101011100001101100100
31120111022012100100220102120
42232220333111130031210
53033111430002211322
641305135320105540
72346025645101054
oct256507725341544
946438170326376
1012001201210212
113907754237915
121419ab60052b0
13690929518b66
142d6c0b345564
1515c2a35e9a5c
hexaea3f55c364

12001201210212 has 48 divisors (see below), whose sum is σ = 28275505370112. Its totient is φ = 3961445179680.

The previous prime is 12001201210211. The next prime is 12001201210223. The reversal of 12001201210212 is 21201210210021.

It is a junction number, because it is equal to n+sod(n) for n = 12001201210191 and 12001201210200.

It is not an unprimeable number, because it can be changed into a prime (12001201210211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48712723 + ... + 48958469.

It is an arithmetic number, because the mean of its divisors is an integer number (589073028544).

Almost surely, 212001201210212 is an apocalyptic number.

12001201210212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12001201210212 is an abundant number, since it is smaller than the sum of its proper divisors (16274304159900).

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

12001201210212 is a wasteful number, since it uses less digits than its factorization.

12001201210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285368 (or 285366 counting only the distinct ones).

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

Adding to 12001201210212 its reverse (21201210210021), we get a palindrome (33202411420233).

The spelling of 12001201210212 in words is "twelve trillion, one billion, two hundred one million, two hundred ten thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 103 206 309 412 618 1236 39511 79022 118533 158044 237066 245747 474132 491494 737241 982988 1474482 2948964 4069633 8139266 12208899 16278532 24417798 25311941 48835596 50623882 75935823 101247764 151871646 303743292 9709709717 19419419434 29129129151 38838838868 58258258302 116516516604 1000100100851 2000200201702 3000300302553 4000400403404 6000600605106 12001201210212