Base | Representation |
---|---|
bin | 10110100010011101… |
… | …00110011100011101 |
3 | 1011020021122212012202 |
4 | 23101032212130131 |
5 | 144240122401341 |
6 | 5320405141245 |
7 | 605566001444 |
oct | 132116463435 |
9 | 34207585182 |
10 | 12100200221 |
11 | 514a27a57a |
12 | 24183ba825 |
13 | 11aab484b5 |
14 | 82b061d5b |
15 | 4ac46479b |
hex | 2d13a671d |
12100200221 has 8 divisors (see below), whose sum is σ = 12119002560. Its totient is φ = 12081413952.
The previous prime is 12100200193. The next prime is 12100200227. The reversal of 12100200221 is 12200200121.
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 12100200221 - 210 = 12100199197 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12100200227) 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, 2771186 + ... + 2775548.
It is an arithmetic number, because the mean of its divisors is an integer number (1514875320).
Almost surely, 212100200221 is an apocalyptic number.
It is an amenable number.
12100200221 is a deficient number, since it is larger than the sum of its proper divisors (18802339).
12100200221 is a wasteful number, since it uses less digits than its factorization.
12100200221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8035.
The product of its (nonzero) digits is 16, while the sum is 11.
Adding to 12100200221 its reverse (12200200121), we get a palindrome (24300400342).
The spelling of 12100200221 in words is "twelve billion, one hundred million, two hundred thousand, two hundred twenty-one".
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