Base | Representation |
---|---|
bin | 1011000110001101000011… |
… | …0011001100001110111101 |
3 | 1121012102110022120100222220 |
4 | 2301203100303030032331 |
5 | 3044401034302413041 |
6 | 41541054130555553 |
7 | 2366336235342252 |
oct | 261432063141675 |
9 | 47172408510886 |
10 | 12201210201021 |
11 | 3984560089a36 |
12 | 1450814738bb9 |
13 | 6a675266542a |
14 | 3027826c7429 |
15 | 1625ac747d66 |
hex | b18d0ccc3bd |
12201210201021 has 16 divisors (see below), whose sum is σ = 16886781343488. Its totient is φ = 7830563918400.
The previous prime is 12201210200999. The next prime is 12201210201067. The reversal of 12201210201021 is 12010201210221.
12201210201021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 12201210201021 - 214 = 12201210184637 is a prime.
It is a super-2 number, since 2×122012102010212 (a number of 27 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12201210201121) 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, 709281610 + ... + 709298811.
It is an arithmetic number, because the mean of its divisors is an integer number (1055423833968).
Almost surely, 212201210201021 is an apocalyptic number.
It is an amenable number.
12201210201021 is a deficient number, since it is larger than the sum of its proper divisors (4685571142467).
12201210201021 is a wasteful number, since it uses less digits than its factorization.
12201210201021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1418580532.
The product of its (nonzero) digits is 32, while the sum is 15.
Adding to 12201210201021 its reverse (12010201210221), we get a palindrome (24211411411242).
The spelling of 12201210201021 in words is "twelve trillion, two hundred one billion, two hundred ten million, two hundred one thousand, twenty-one".
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