Base | Representation |
---|---|
bin | 11011010010100001010110… |
… | …001011101000101011101101 |
3 | 120201221210121222220111010012 |
4 | 123102201112023220223231 |
5 | 111212401441033311341 |
6 | 1103132233215423005 |
7 | 34165105532362241 |
oct | 3322412613505355 |
9 | 521853558814105 |
10 | 120020012010221 |
11 | 35273223956734 |
12 | 11564823224a65 |
13 | 51c7ab944b13b |
14 | 218cddcba0421 |
15 | dd1ee14950eb |
hex | 6d28562e8aed |
120020012010221 has 8 divisors (see below), whose sum is σ = 122830823183040. Its totient is φ = 117241695764512.
The previous prime is 120020012010191. The next prime is 120020012010233. The reversal of 120020012010221 is 122010210020021.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 120020012010221 - 226 = 120019944901357 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 120020012010196 and 120020012010205.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120020012010251) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8123724305 + ... + 8123739078.
It is an arithmetic number, because the mean of its divisors is an integer number (15353852897880).
Almost surely, 2120020012010221 is an apocalyptic number.
It is an amenable number.
120020012010221 is a deficient number, since it is larger than the sum of its proper divisors (2810811172819).
120020012010221 is an equidigital number, since it uses as much as digits as its factorization.
120020012010221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16247463555.
The product of its (nonzero) digits is 32, while the sum is 14.
Adding to 120020012010221 its reverse (122010210020021), we get a palindrome (242030222030242).
The spelling of 120020012010221 in words is "one hundred twenty trillion, twenty billion, twelve million, ten thousand, two hundred twenty-one".
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