Base | Representation |
---|---|
bin | 110111111110110101… |
… | …1010101010101011101 |
3 | 102111022100100110200221 |
4 | 1233331223111111131 |
5 | 3432202322042341 |
6 | 131121154121341 |
7 | 11454111043666 |
oct | 1577553252535 |
9 | 374270313627 |
10 | 120220112221 |
11 | 46a92134750 |
12 | 1b371580251 |
13 | b44b993ba1 |
14 | 5b6668236d |
15 | 31d9483ed1 |
hex | 1bfdad555d |
120220112221 has 8 divisors (see below), whose sum is σ = 132729325344. Its totient is φ = 107974251120.
The previous prime is 120220112197. The next prime is 120220112231. The reversal of 120220112221 is 122211022021.
It is a happy number.
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 120220112221 - 27 = 120220112093 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 120220112195 and 120220112204.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120220112231) 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, 65837046 + ... + 65838871.
It is an arithmetic number, because the mean of its divisors is an integer number (16591165668).
Almost surely, 2120220112221 is an apocalyptic number.
120220112221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
120220112221 is a deficient number, since it is larger than the sum of its proper divisors (12509213123).
120220112221 is a wasteful number, since it uses less digits than its factorization.
120220112221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 131676011.
The product of its (nonzero) digits is 64, while the sum is 16.
Adding to 120220112221 its reverse (122211022021), we get a palindrome (242431134242).
The spelling of 120220112221 in words is "one hundred twenty billion, two hundred twenty million, one hundred twelve thousand, two hundred twenty-one".
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