Base | Representation |
---|---|
bin | 10110101110010111… |
… | …10100001001100101 |
3 | 1011111020200222111222 |
4 | 23113023310021211 |
5 | 144441213230341 |
6 | 5334335110125 |
7 | 611221264343 |
oct | 132713641145 |
9 | 34436628458 |
10 | 12200133221 |
11 | 51a0725731 |
12 | 2445972345 |
13 | 11c5767653 |
14 | 83a436993 |
15 | 4b610444b |
hex | 2d72f4265 |
12200133221 has 8 divisors (see below), whose sum is σ = 12834741600. Its totient is φ = 11579785840.
The previous prime is 12200133217. The next prime is 12200133223. The reversal of 12200133221 is 12233100221.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12200133221 - 22 = 12200133217 is a prime.
It is a super-2 number, since 2×122001332212 (a number of 21 digits) contains 22 as substring.
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 12200133221.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12200133223) 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, 3563495 + ... + 3566916.
It is an arithmetic number, because the mean of its divisors is an integer number (1604342700).
Almost surely, 212200133221 is an apocalyptic number.
It is an amenable number.
12200133221 is a deficient number, since it is larger than the sum of its proper divisors (634608379).
12200133221 is an equidigital number, since it uses as much as digits as its factorization.
12200133221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7130499.
The product of its (nonzero) digits is 144, while the sum is 17.
Adding to 12200133221 its reverse (12233100221), we get a palindrome (24433233442).
The spelling of 12200133221 in words is "twelve billion, two hundred million, one hundred thirty-three thousand, two hundred twenty-one".
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