Base | Representation |
---|---|
bin | 11101011001010001100… |
… | …000110111111010000101 |
3 | 21011002222102111221201112 |
4 | 131121101200313322011 |
5 | 231043431030414341 |
6 | 4143550505334405 |
7 | 265640352260354 |
oct | 35312140677205 |
9 | 7132872457645 |
10 | 2020002201221 |
11 | 7097506436a4 |
12 | 2875a6797405 |
13 | 11864052cbb4 |
14 | 6daa918999b |
15 | 37829030aeb |
hex | 1d651837e85 |
2020002201221 has 4 divisors (see below), whose sum is σ = 2020318872000. Its totient is φ = 2019685530444.
The previous prime is 2020002201179. The next prime is 2020002201227. The reversal of 2020002201221 is 1221022000202.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 2020002201221 - 210 = 2020002200197 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 2020002201196 and 2020002201205.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2020002201227) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158325821 + ... + 158338578.
It is an arithmetic number, because the mean of its divisors is an integer number (505079718000).
Almost surely, 22020002201221 is an apocalyptic number.
It is an amenable number.
2020002201221 is a deficient number, since it is larger than the sum of its proper divisors (316670779).
2020002201221 is an equidigital number, since it uses as much as digits as its factorization.
2020002201221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 316670778.
The product of its (nonzero) digits is 64, while the sum is 14.
Adding to 2020002201221 its reverse (1221022000202), we get a palindrome (3241024201423).
The spelling of 2020002201221 in words is "two trillion, twenty billion, two million, two hundred one thousand, two hundred twenty-one".
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