| Base | Representation |
|---|---|
| bin | 101010000111… |
| … | …100111000101 |
| 3 | 202202221201010 |
| 4 | 222013213011 |
| 5 | 10311304341 |
| 6 | 1032352433 |
| 7 | 162564102 |
| oct | 52074705 |
| 9 | 22687633 |
| 10 | 11041221 |
| 11 | 6261484 |
| 12 | 3845719 |
| 13 | 2397789 |
| 14 | 1675aa9 |
| 15 | e81716 |
| hex | a879c5 |
11041221 has 4 divisors (see below), whose sum is σ = 14721632. Its totient is φ = 7360812.
The previous prime is 11041213. The next prime is 11041229. The reversal of 11041221 is 12214011.
It is a happy number.
11041221 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, and also an emirpimes, since its reverse is a distinct semiprime: 12214011 = 3 ⋅4071337.
It is an interprime number because it is at equal distance from previous prime (11041213) and next prime (11041229).
It is not a de Polignac number, because 11041221 - 23 = 11041213 is a prime.
It is a super-2 number, since 2×110412212 = 243817122341682, which contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 11041197 and 11041206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (11041229) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1840201 + ... + 1840206.
It is an arithmetic number, because the mean of its divisors is an integer number (3680408).
Almost surely, 211041221 is an apocalyptic number.
It is an amenable number.
11041221 is a deficient number, since it is larger than the sum of its proper divisors (3680411).
11041221 is an equidigital number, since it uses as much as digits as its factorization.
11041221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3680410.
The product of its (nonzero) digits is 16, while the sum is 12.
The square root of 11041221 is about 3322.8332789955. The cubic root of 11041221 is about 222.6754648397.
Adding to 11041221 its reverse (12214011), we get a palindrome (23255232).
The spelling of 11041221 in words is "eleven million, forty-one thousand, two hundred twenty-one".
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