Base | Representation |
---|---|
bin | 111000110110111011… |
… | …0100011010000001001 |
3 | 102200011111122101222002 |
4 | 1301231312203100021 |
5 | 4000031114213001 |
6 | 132032023440345 |
7 | 11551542506516 |
oct | 1615566432011 |
9 | 380144571862 |
10 | 122102101001 |
11 | 478684a8781 |
12 | 1b7b78b60b5 |
13 | b68b85c60a |
14 | 5ca45bc30d |
15 | 32997d546b |
hex | 1c6dda3409 |
122102101001 has 2 divisors, whose sum is σ = 122102101002. Its totient is φ = 122102101000.
The previous prime is 122102100997. The next prime is 122102101013. The reversal of 122102101001 is 100101201221.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 114024405625 + 8077695376 = 337675^2 + 89876^2 .
It is a cyclic number.
It is not a de Polignac number, because 122102101001 - 22 = 122102100997 is a prime.
It is not a weakly prime, because it can be changed into another prime (122102101501) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61051050500 + 61051050501.
It is an arithmetic number, because the mean of its divisors is an integer number (61051050501).
Almost surely, 2122102101001 is an apocalyptic number.
It is an amenable number.
122102101001 is a deficient number, since it is larger than the sum of its proper divisors (1).
122102101001 is an equidigital number, since it uses as much as digits as its factorization.
122102101001 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 8, while the sum is 11.
Adding to 122102101001 its reverse (100101201221), we get a palindrome (222203302222).
The spelling of 122102101001 in words is "one hundred twenty-two billion, one hundred two million, one hundred one thousand, one".
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