Base | Representation |
---|---|
bin | 100000010011101001111… |
… | …001001100101011101101 |
3 | 21212020112111000202022220 |
4 | 200103221321030223231 |
5 | 242333310031211341 |
6 | 4415525023025553 |
7 | 316253551630164 |
oct | 40235171145355 |
9 | 7766474022286 |
10 | 2220127210221 |
11 | 786606a27a18 |
12 | 2ba33813b2b9 |
13 | 13148470ab9b |
14 | 79651acc3db |
15 | 3cb3d449a66 |
hex | 204e9e4caed |
2220127210221 has 4 divisors (see below), whose sum is σ = 2960169613632. Its totient is φ = 1480084806812.
The previous prime is 2220127210219. The next prime is 2220127210261. The reversal of 2220127210221 is 1220127210222.
2220127210221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
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 2220127210221 - 21 = 2220127210219 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 2220127210191 and 2220127210200.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2220127210261) 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, 370021201701 + ... + 370021201706.
It is an arithmetic number, because the mean of its divisors is an integer number (740042403408).
Almost surely, 22220127210221 is an apocalyptic number.
It is an amenable number.
2220127210221 is a deficient number, since it is larger than the sum of its proper divisors (740042403411).
2220127210221 is an equidigital number, since it uses as much as digits as its factorization.
2220127210221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 740042403410.
The product of its (nonzero) digits is 896, while the sum is 24.
Subtracting from 2220127210221 its reverse (1220127210222), we obtain a palindrome (999999999999).
The spelling of 2220127210221 in words is "two trillion, two hundred twenty billion, one hundred twenty-seven million, two hundred ten thousand, two hundred twenty-one".
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