Base | Representation |
---|---|
bin | 1001000110101010100010… |
… | …0001101110001101110101 |
3 | 1022102221211011102222202010 |
4 | 2101222220201232031311 |
5 | 2303001141402241041 |
6 | 33142324345034433 |
7 | 2052130432260111 |
oct | 221525041561565 |
9 | 38387734388663 |
10 | 10010101212021 |
11 | 320a295198129 |
12 | 1158036785a19 |
13 | 577c43ac2061 |
14 | 2686c48ba741 |
15 | 1255bbb44a16 |
hex | 91aa886e375 |
10010101212021 has 32 divisors (see below), whose sum is σ = 14021957836800. Its totient is φ = 6339783726144.
The previous prime is 10010101212019. The next prime is 10010101212061. The reversal of 10010101212021 is 12021210101001.
It is not a de Polignac number, because 10010101212021 - 21 = 10010101212019 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 10010101211988 and 10010101212006.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10010101212061) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117602940 + ... + 117688026.
It is an arithmetic number, because the mean of its divisors is an integer number (438186182400).
Almost surely, 210010101212021 is an apocalyptic number.
It is an amenable number.
10010101212021 is a deficient number, since it is larger than the sum of its proper divisors (4011856624779).
10010101212021 is a wasteful number, since it uses less digits than its factorization.
10010101212021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 96705.
The product of its (nonzero) digits is 8, while the sum is 12.
Adding to 10010101212021 its reverse (12021210101001), we get a palindrome (22031311313022).
The spelling of 10010101212021 in words is "ten trillion, ten billion, one hundred one million, two hundred twelve thousand, twenty-one".
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