| Base | Representation |
|---|---|
| bin | 10110110010001011… |
| … | …10011100001011100 |
| 3 | 1011120110212200110100 |
| 4 | 23121011303201130 |
| 5 | 200022410042340 |
| 6 | 5341440341100 |
| 7 | 612060144516 |
| oct | 133105634134 |
| 9 | 34513780410 |
| 10 | 12232112220 |
| 11 | 5207787a59 |
| 12 | 2454614790 |
| 13 | 11cc283333 |
| 14 | 84079cbb6 |
| 15 | 4b8d1e830 |
| hex | 2d917385c |
12232112220 has 144 divisors (see below), whose sum is σ = 39099060000. Its totient is φ = 3086885376.
The previous prime is 12232112219. The next prime is 12232112231. The reversal of 12232112220 is 2221123221.
12232112220 is a `hidden beast` number, since 122 + 321 + 1 + 2 + 220 = 666.
12232112220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 12232112193 and 12232112202.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5296426 + ... + 5298734.
It is an arithmetic number, because the mean of its divisors is an integer number (271521250).
Almost surely, 212232112220 is an apocalyptic number.
12232112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12232112220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19549530000).
12232112220 is an abundant number, since it is smaller than the sum of its proper divisors (26866947780).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12232112220 is a wasteful number, since it uses less digits than its factorization.
12232112220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3892 (or 3887 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
Adding to 12232112220 its reverse (2221123221), we get a palindrome (14453235441).
The spelling of 12232112220 in words is "twelve billion, two hundred thirty-two million, one hundred twelve thousand, two hundred twenty".
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