Base | Representation |
---|---|
bin | 10110101110011111… |
… | …00011001000111000 |
3 | 1011111022112201022111 |
4 | 23113033203020320 |
5 | 144441441041440 |
6 | 5334412102104 |
7 | 611232512311 |
oct | 132717431070 |
9 | 34438481274 |
10 | 12201112120 |
11 | 51a123413a |
12 | 2446164934 |
13 | 11c5a1b092 |
14 | 83a60d608 |
15 | 4b62494ea |
hex | 2d73e3238 |
12201112120 has 32 divisors (see below), whose sum is σ = 27459029520. Its totient is φ = 4879284480.
The previous prime is 12201112111. The next prime is 12201112129. The reversal of 12201112120 is 2121110221.
It is an interprime number because it is at equal distance from previous prime (12201112111) and next prime (12201112129).
It is a self number, because there is not a number n which added to its sum of digits gives 12201112120.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12201112129) 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, 145300 + ... + 213340.
Almost surely, 212201112120 is an apocalyptic number.
12201112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12201112120 is an abundant number, since it is smaller than the sum of its proper divisors (15257917400).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12201112120 is a wasteful number, since it uses less digits than its factorization.
12201112120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 72535 (or 72531 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 13.
Adding to 12201112120 its reverse (2121110221), we get a palindrome (14322222341).
The spelling of 12201112120 in words is "twelve billion, two hundred one million, one hundred twelve thousand, one hundred twenty".
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