Base | Representation |
---|---|
bin | 10001110010001100001… |
… | …001100001010100110001 |
3 | 11022211111210012001211001 |
4 | 101302030021201110301 |
5 | 130010401214034342 |
6 | 2333233552122001 |
7 | 154203215516431 |
oct | 21621411412461 |
9 | 4284453161731 |
10 | 1222122018097 |
11 | 431332022782 |
12 | 178a32236301 |
13 | 8b3267bc346 |
14 | 4321858c2c1 |
15 | 21bcbdbc8b7 |
hex | 11c8c261531 |
1222122018097 has 2 divisors, whose sum is σ = 1222122018098. Its totient is φ = 1222122018096.
The previous prime is 1222122018079. The next prime is 1222122018107. The reversal of 1222122018097 is 7908102212221.
Together with previous prime (1222122018079) it forms an Ormiston pair, because they use the same digits, order apart.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1103085977841 + 119036040256 = 1050279^2 + 345016^2 .
It is a cyclic number.
It is not a de Polignac number, because 1222122018097 - 219 = 1222121493809 is a prime.
It is not a weakly prime, because it can be changed into another prime (1222122918097) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611061009048 + 611061009049.
It is an arithmetic number, because the mean of its divisors is an integer number (611061009049).
Almost surely, 21222122018097 is an apocalyptic number.
It is an amenable number.
1222122018097 is a deficient number, since it is larger than the sum of its proper divisors (1).
1222122018097 is an equidigital number, since it uses as much as digits as its factorization.
1222122018097 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 16128, while the sum is 37.
The spelling of 1222122018097 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-two million, eighteen thousand, ninety-seven".
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