Base | Representation |
---|---|
bin | 10110100101000011… |
… | …10011000111010111 |
3 | 1011021210200220200222 |
4 | 23102201303013113 |
5 | 144311213310241 |
6 | 5322504424555 |
7 | 606252246143 |
oct | 132241630727 |
9 | 34253626628 |
10 | 12122010071 |
11 | 5160616646 |
12 | 242377815b |
13 | 11b2513632 |
14 | 82dcdc223 |
15 | 4ae321a4b |
hex | 2d28731d7 |
12122010071 has 2 divisors, whose sum is σ = 12122010072. Its totient is φ = 12122010070.
The previous prime is 12122009989. The next prime is 12122010101. The reversal of 12122010071 is 17001022121.
It is a strong prime.
It is an emirp because it is prime and its reverse (17001022121) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-12122010071 is a prime.
It is a super-2 number, since 2×121220100712 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12122010371) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061005035 + 6061005036.
It is an arithmetic number, because the mean of its divisors is an integer number (6061005036).
Almost surely, 212122010071 is an apocalyptic number.
12122010071 is a deficient number, since it is larger than the sum of its proper divisors (1).
12122010071 is an equidigital number, since it uses as much as digits as its factorization.
12122010071 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 56, while the sum is 17.
Adding to 12122010071 its reverse (17001022121), we get a palindrome (29123032192).
The spelling of 12122010071 in words is "twelve billion, one hundred twenty-two million, ten thousand, seventy-one".
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