Base | Representation |
---|---|
bin | 1011000110001100101101… |
… | …1111000010000000111101 |
3 | 1121012102020002210000122002 |
4 | 2301203023133002000331 |
5 | 3044400343440431310 |
6 | 41541041223432045 |
7 | 2366334103402112 |
oct | 261431337020075 |
9 | 47172202700562 |
10 | 12201121030205 |
11 | 3984514814648 |
12 | 14507aa8b5625 |
13 | 6a673a043a33 |
14 | 302774914909 |
15 | 1625a49d1da5 |
hex | b18cb7c203d |
12201121030205 has 8 divisors (see below), whose sum is σ = 14642215240704. Its totient is φ = 9760316821200.
The previous prime is 12201121030199. The next prime is 12201121030261. The reversal of 12201121030205 is 50203012110221.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12201121030205 - 212 = 12201121026109 is a prime.
It is a Duffinian number.
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, 72407801 + ... + 72576110.
It is an arithmetic number, because the mean of its divisors is an integer number (1830276905088).
Almost surely, 212201121030205 is an apocalyptic number.
It is an amenable number.
12201121030205 is a deficient number, since it is larger than the sum of its proper divisors (2441094210499).
12201121030205 is a wasteful number, since it uses less digits than its factorization.
12201121030205 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 145000747.
The product of its (nonzero) digits is 240, while the sum is 20.
Adding to 12201121030205 its reverse (50203012110221), we get a palindrome (62404133140426).
The spelling of 12201121030205 in words is "twelve trillion, two hundred one billion, one hundred twenty-one million, thirty thousand, two hundred five".
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