Base | Representation |
---|---|
bin | 110100010000011011… |
… | …0001010111101010111 |
3 | 101201122211010220101112 |
4 | 1220200312022331113 |
5 | 3314311334040041 |
6 | 123315300445235 |
7 | 11051631066524 |
oct | 1504066127527 |
9 | 351584126345 |
10 | 112220221271 |
11 | 43657431224 |
12 | 198ba3a981b |
13 | a77548b5c2 |
14 | 560800614b |
15 | 2dbbeaadeb |
hex | 1a20d8af57 |
112220221271 has 2 divisors, whose sum is σ = 112220221272. Its totient is φ = 112220221270.
The previous prime is 112220221213. The next prime is 112220221273. The reversal of 112220221271 is 172122022211.
It is a strong prime.
It is an emirp because it is prime and its reverse (172122022211) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 112220221271 - 210 = 112220220247 is a prime.
It is a super-2 number, since 2×1122202212712 (a number of 23 digits) contains 22 as substring.
Together with 112220221273, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (112220221273) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56110110635 + 56110110636.
It is an arithmetic number, because the mean of its divisors is an integer number (56110110636).
Almost surely, 2112220221271 is an apocalyptic number.
112220221271 is a deficient number, since it is larger than the sum of its proper divisors (1).
112220221271 is an equidigital number, since it uses as much as digits as its factorization.
112220221271 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 448, while the sum is 23.
Adding to 112220221271 its reverse (172122022211), we get a palindrome (284342243482).
The spelling of 112220221271 in words is "one hundred twelve billion, two hundred twenty million, two hundred twenty-one thousand, two hundred seventy-one".
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