Base | Representation |
---|---|
bin | 1011000000011011011101… |
… | …1110100101101110011001 |
3 | 1120211221101021011222122020 |
4 | 2300012313132211232121 |
5 | 3041234344241402301 |
6 | 41423325500045053 |
7 | 2356224604155354 |
oct | 260066736455631 |
9 | 46757337158566 |
10 | 12102001122201 |
11 | 3946480153701 |
12 | 1435547833789 |
13 | 69a2a197a3b3 |
14 | 2dba5070b29b |
15 | 15ec02b90436 |
hex | b01b77a5b99 |
12102001122201 has 48 divisors (see below), whose sum is σ = 17455185745920. Its totient is φ = 7455129821440.
The previous prime is 12102001122191. The next prime is 12102001122221. The reversal of 12102001122201 is 10222110020121.
It is not a de Polignac number, because 12102001122201 - 215 = 12102001089433 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (12102001122221) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14300830 + ... + 15123416.
It is an arithmetic number, because the mean of its divisors is an integer number (363649703040).
Almost surely, 212102001122201 is an apocalyptic number.
It is an amenable number.
12102001122201 is a deficient number, since it is larger than the sum of its proper divisors (5353184623719).
12102001122201 is a wasteful number, since it uses less digits than its factorization.
12102001122201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 822934 (or 822917 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 15.
Adding to 12102001122201 its reverse (10222110020121), we get a palindrome (22324111142322).
The spelling of 12102001122201 in words is "twelve trillion, one hundred two billion, one million, one hundred twenty-two thousand, two hundred one".
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