Base | Representation |
---|---|
bin | 1010000001100001001111… |
… | …1010100100001100000101 |
3 | 1110000121200210012120221222 |
4 | 2200120103322210030011 |
5 | 2421032424332414341 |
6 | 35235024554050125 |
7 | 2215154053003226 |
oct | 240302372441405 |
9 | 43017623176858 |
10 | 11021220201221 |
11 | 356a08953219a |
12 | 129bba0419945 |
13 | 61c3b1847039 |
14 | 2a160392924d |
15 | 141a4960144b |
hex | a0613ea4305 |
11021220201221 has 4 divisors (see below), whose sum is σ = 11046673366092. Its totient is φ = 10995767036352.
The previous prime is 11021220201217. The next prime is 11021220201227. The reversal of 11021220201221 is 12210202212011.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 3438020556100 + 7583199645121 = 1854190^2 + 2753761^2 .
It is a cyclic number.
It is not a de Polignac number, because 11021220201221 - 22 = 11021220201217 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 11021220201221.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (11021220201227) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12726581786 + ... + 12726582651.
It is an arithmetic number, because the mean of its divisors is an integer number (2761668341523).
Almost surely, 211021220201221 is an apocalyptic number.
It is an amenable number.
11021220201221 is a deficient number, since it is larger than the sum of its proper divisors (25453164871).
11021220201221 is an equidigital number, since it uses as much as digits as its factorization.
11021220201221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25453164870.
The product of its (nonzero) digits is 64, while the sum is 17.
Adding to 11021220201221 its reverse (12210202212011), we get a palindrome (23231422413232).
The spelling of 11021220201221 in words is "eleven trillion, twenty-one billion, two hundred twenty million, two hundred one thousand, two hundred twenty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •