Base | Representation |
---|---|
bin | 10110101110011110… |
… | …01010101100100001 |
3 | 1011111022100121222101 |
4 | 23113033022230201 |
5 | 144441424341001 |
6 | 5334410010401 |
7 | 611231614363 |
oct | 132717125441 |
9 | 34438317871 |
10 | 12201012001 |
11 | 51a11759a2 |
12 | 2446116a01 |
13 | 11c59b4639 |
14 | 83a5c4d33 |
15 | 4b6229a01 |
hex | 2d73cab21 |
12201012001 has 2 divisors, whose sum is σ = 12201012002. Its totient is φ = 12201012000.
The previous prime is 12201011989. The next prime is 12201012041. The reversal of 12201012001 is 10021010221.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 7917440400 + 4283571601 = 88980^2 + 65449^2 .
It is an emirp because it is prime and its reverse (10021010221) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12201012001 - 225 = 12167457569 is a prime.
It is not a weakly prime, because it can be changed into another prime (12201012041) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100506000 + 6100506001.
It is an arithmetic number, because the mean of its divisors is an integer number (6100506001).
Almost surely, 212201012001 is an apocalyptic number.
It is an amenable number.
12201012001 is a deficient number, since it is larger than the sum of its proper divisors (1).
12201012001 is an equidigital number, since it uses as much as digits as its factorization.
12201012001 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 10.
Adding to 12201012001 its reverse (10021010221), we get a palindrome (22222022222).
The spelling of 12201012001 in words is "twelve billion, two hundred one million, twelve thousand, one".
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