Base | Representation |
---|---|
bin | 11011100011111111110111… |
… | …110110010011010001101001 |
3 | 120220012121122022201001100012 |
4 | 123203333313312103101221 |
5 | 111342041122132431324 |
6 | 1105452100133221305 |
7 | 34350633612515213 |
oct | 3343776766232151 |
9 | 526177568631305 |
10 | 121221020202089 |
11 | 35696600751245 |
12 | 11719542491835 |
13 | 5284129880882 |
14 | 21d11b31695b3 |
15 | e0338492e20e |
hex | 6e3ff7d93469 |
121221020202089 has 2 divisors, whose sum is σ = 121221020202090. Its totient is φ = 121221020202088.
The previous prime is 121221020202067. The next prime is 121221020202133. The reversal of 121221020202089 is 980202020122121.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 87100035907600 + 34120984294489 = 9332740^2 + 5841317^2 .
It is a cyclic number.
It is not a de Polignac number, because 121221020202089 - 28 = 121221020201833 is a prime.
It is not a weakly prime, because it can be changed into another prime (121221020202019) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60610510101044 + 60610510101045.
It is an arithmetic number, because the mean of its divisors is an integer number (60610510101045).
Almost surely, 2121221020202089 is an apocalyptic number.
It is an amenable number.
121221020202089 is a deficient number, since it is larger than the sum of its proper divisors (1).
121221020202089 is an equidigital number, since it uses as much as digits as its factorization.
121221020202089 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 4608, while the sum is 32.
The spelling of 121221020202089 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, twenty million, two hundred two thousand, eighty-nine".
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