| Base | Representation |
|---|---|
| bin | 10110110000110111… |
| … | …11000001001101100 |
| 3 | 1011112201012021112000 |
| 4 | 23120123320021230 |
| 5 | 200012101334012 |
| 6 | 5340405012300 |
| 7 | 611564546523 |
| oct | 133033701154 |
| 9 | 34481167460 |
| 10 | 12221121132 |
| 11 | 5201560210 |
| 12 | 24509b4090 |
| 13 | 11c9c0562c |
| 14 | 83d13b4ba |
| 15 | 4b7d9cddc |
| hex | 2d86f826c |
12221121132 has 96 divisors (see below), whose sum is σ = 34601548800. Its totient is φ = 3699432000.
The previous prime is 12221121079. The next prime is 12221121161. The reversal of 12221121132 is 23112112221.
12221121132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×122211211322 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a nude number because it is divisible by every one of its digits.
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 31 ways as a sum of consecutive naturals, for example, 1229382 + ... + 1239282.
It is an arithmetic number, because the mean of its divisors is an integer number (360432800).
Almost surely, 212221121132 is an apocalyptic number.
12221121132 is a gapful number since it is divisible by the number (12) 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 12221121132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17300774400).
12221121132 is an abundant number, since it is smaller than the sum of its proper divisors (22380427668).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12221121132 is a wasteful number, since it uses less digits than its factorization.
12221121132 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10964 (or 10956 counting only the distinct ones).
The product of its digits is 96, while the sum is 18.
Adding to 12221121132 its reverse (23112112221), we get a palindrome (35333233353).
The spelling of 12221121132 in words is "twelve billion, two hundred twenty-one million, one hundred twenty-one thousand, one hundred thirty-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.081 sec. • engine limits •