Base | Representation |
---|---|
bin | 111000110111011101… |
… | …1101011000110101101 |
3 | 102200012202202000001220 |
4 | 1301232323223012231 |
5 | 4000100234033401 |
6 | 132033512053553 |
7 | 11552152516014 |
oct | 1615673530655 |
9 | 380182660056 |
10 | 122120221101 |
11 | 4787775466a |
12 | 1b8019942b9 |
13 | b692535178 |
14 | 5ca6b77a7b |
15 | 329b1b4336 |
hex | 1c6eeeb1ad |
122120221101 has 8 divisors (see below), whose sum is σ = 168079444224. Its totient is φ = 78787239360.
The previous prime is 122120221081. The next prime is 122120221177. The reversal of 122120221101 is 101122021221.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 122120221101 - 26 = 122120221037 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (122120221801) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656560236 + ... + 656560421.
It is an arithmetic number, because the mean of its divisors is an integer number (21009930528).
Almost surely, 2122120221101 is an apocalyptic number.
It is an amenable number.
122120221101 is a deficient number, since it is larger than the sum of its proper divisors (45959223123).
122120221101 is a wasteful number, since it uses less digits than its factorization.
122120221101 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1313120691.
The product of its (nonzero) digits is 32, while the sum is 15.
Adding to 122120221101 its reverse (101122021221), we get a palindrome (223242242322).
The spelling of 122120221101 in words is "one hundred twenty-two billion, one hundred twenty million, two hundred twenty-one thousand, one hundred one".
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