Base | Representation |
---|---|
bin | 10110100100110101… |
… | …11110100101000011 |
3 | 1011021200100001221211 |
4 | 23102122332211003 |
5 | 144310234101034 |
6 | 5322402230551 |
7 | 606231121153 |
oct | 132232764503 |
9 | 34250301854 |
10 | 12120222019 |
11 | 515a605214 |
12 | 2423055457 |
13 | 11b2038809 |
14 | 82d994763 |
15 | 4ae0bbd64 |
hex | 2d26be943 |
12120222019 has 2 divisors, whose sum is σ = 12120222020. Its totient is φ = 12120222018.
The previous prime is 12120221989. The next prime is 12120222041. The reversal of 12120222019 is 91022202121.
It is an a-pointer prime, because the next prime (12120222041) can be obtained adding 12120222019 to its sum of digits (22).
It is a strong prime.
It is an emirp because it is prime and its reverse (91022202121) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12120222019 - 29 = 12120221507 is a prime.
It is a super-2 number, since 2×121202220192 (a number of 21 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (12120228019) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060111009 + 6060111010.
It is an arithmetic number, because the mean of its divisors is an integer number (6060111010).
Almost surely, 212120222019 is an apocalyptic number.
12120222019 is a deficient number, since it is larger than the sum of its proper divisors (1).
12120222019 is an equidigital number, since it uses as much as digits as its factorization.
12120222019 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 288, while the sum is 22.
The spelling of 12120222019 in words is "twelve billion, one hundred twenty million, two hundred twenty-two thousand, nineteen".
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