Base | Representation |
---|---|
bin | 111000011100101000… |
… | …1100111000110011111 |
3 | 102120220000211010220101 |
4 | 1300321101213012133 |
5 | 3441224310032312 |
6 | 131404313201531 |
7 | 11520642006103 |
oct | 1607121470637 |
9 | 376800733811 |
10 | 121220002207 |
11 | 47455592907 |
12 | 1b5b04002a7 |
13 | b57ab92c75 |
14 | 5c1d3a1903 |
15 | 3247142a57 |
hex | 1c3946719f |
121220002207 has 2 divisors, whose sum is σ = 121220002208. Its totient is φ = 121220002206.
The previous prime is 121220002157. The next prime is 121220002213. The reversal of 121220002207 is 702200022121.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 121220002207 - 235 = 86860263839 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (121220002807) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60610001103 + 60610001104.
It is an arithmetic number, because the mean of its divisors is an integer number (60610001104).
Almost surely, 2121220002207 is an apocalyptic number.
121220002207 is a deficient number, since it is larger than the sum of its proper divisors (1).
121220002207 is an equidigital number, since it uses as much as digits as its factorization.
121220002207 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 224, while the sum is 19.
Adding to 121220002207 its reverse (702200022121), we get a palindrome (823420024328).
The spelling of 121220002207 in words is "one hundred twenty-one billion, two hundred twenty million, two thousand, two hundred seven".
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