Base | Representation |
---|---|
bin | 1011000000010111101111… |
… | …0111011101101110110101 |
3 | 1120211211210120022000202100 |
4 | 2300011323313131232311 |
5 | 3041230322224310401 |
6 | 41423042332132313 |
7 | 2356161041306553 |
oct | 260057367355665 |
9 | 46754716260670 |
10 | 12101001010101 |
11 | 3946007663683 |
12 | 1435308907099 |
13 | 69a1727011a3 |
14 | 2db997970bd3 |
15 | 15eb94e8ab86 |
hex | b017bdddbb5 |
12101001010101 has 12 divisors (see below), whose sum is σ = 17659421864812. Its totient is φ = 7984165614336.
The previous prime is 12101001010099. The next prime is 12101001010157. The reversal of 12101001010101 is 10101010010121.
It can be written as a sum of positive squares in 2 ways, for example, as 1733438193201 + 10367562816900 = 1316601^2 + 3219870^2 .
It is not a de Polignac number, because 12101001010101 - 21 = 12101001010099 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a Duffinian number.
12101001010101 is a modest number, since divided by 1010101 gives 121010 as remainder.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12101001015101) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6930698446 + ... + 6930700191.
Almost surely, 212101001010101 is an apocalyptic number.
It is an amenable number.
12101001010101 is a deficient number, since it is larger than the sum of its proper divisors (5558420854711).
12101001010101 is a wasteful number, since it uses less digits than its factorization.
12101001010101 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13861398740 (or 13861398737 counting only the distinct ones).
The product of its (nonzero) digits is 2, while the sum is 9.
Adding to 12101001010101 its reverse (10101010010121), we get a palindrome (22202011020222).
The spelling of 12101001010101 in words is "twelve trillion, one hundred one billion, one million, ten thousand, one hundred one".
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