| Base | Representation |
|---|---|
| bin | 10110110000110010… |
| … | …01101110010011001 |
| 3 | 1011112122212211022011 |
| 4 | 23120121031302121 |
| 5 | 200011412021241 |
| 6 | 5340342025521 |
| 7 | 611555612221 |
| oct | 133031156231 |
| 9 | 34478784264 |
| 10 | 12220423321 |
| 11 | 5201123a07 |
| 12 | 24507182a1 |
| 13 | 11c9a1cb22 |
| 14 | 83cdd9081 |
| 15 | 4b7cb1281 |
| hex | 2d864dc99 |
12220423321 has 4 divisors (see below), whose sum is σ = 12427549200. Its totient is φ = 12013297444.
The previous prime is 12220423309. The next prime is 12220423333. The reversal of 12220423321 is 12332402221.
12220423321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is an interprime number because it is at equal distance from previous prime (12220423309) and next prime (12220423333).
It is a cyclic number.
It is not a de Polignac number, because 12220423321 - 25 = 12220423289 is a prime.
It is a super-2 number, since 2×122204233212 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12220423292 and 12220423301.
It is not an unprimeable number, because it can be changed into a prime (12220423421) by changing a digit.
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 3 ways as a sum of consecutive naturals, for example, 103562851 + ... + 103562968.
It is an arithmetic number, because the mean of its divisors is an integer number (3106887300).
Almost surely, 212220423321 is an apocalyptic number.
It is an amenable number.
12220423321 is a deficient number, since it is larger than the sum of its proper divisors (207125879).
12220423321 is an equidigital number, since it uses as much as digits as its factorization.
12220423321 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 207125878.
The product of its (nonzero) digits is 1152, while the sum is 22.
Adding to 12220423321 its reverse (12332402221), we get a palindrome (24552825542).
The spelling of 12220423321 in words is "twelve billion, two hundred twenty million, four hundred twenty-three thousand, three hundred twenty-one".
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