| Base | Representation |
|---|---|
| bin | 100001011010100… |
| … | …0100111100000000 |
| 3 | 2220010202101010110 |
| 4 | 1002311010330000 |
| 5 | 4244012210422 |
| 6 | 303131231320 |
| 7 | 36533062101 |
| oct | 10265047400 |
| 9 | 2803671113 |
| 10 | 1121210112 |
| 11 | 525991830 |
| 12 | 2735a8540 |
| 13 | 14b398b49 |
| 14 | a8ca03a8 |
| 15 | 6867560c |
| hex | 42d44f00 |
1121210112 has 288 divisors, whose sum is σ = 3556756224. Its totient is φ = 309657600.
The previous prime is 1121210087. The next prime is 1121210113. The reversal of 1121210112 is 2110121211.
It is a super-2 number, since 2×11212101122 = 2514224230502105088, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1121210113) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5313687 + ... + 5313897.
It is an arithmetic number, because the mean of its divisors is an integer number (12349848).
Almost surely, 21121210112 is an apocalyptic number.
1121210112 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 1121210112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1778378112).
1121210112 is an abundant number, since it is smaller than the sum of its proper divisors (2435546112).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1121210112 is a wasteful number, since it uses less digits than its factorization.
1121210112 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 295 (or 281 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 12.
The square root of 1121210112 is about 33484.4756865028. The cubic root of 1121210112 is about 1038.8727035704.
Adding to 1121210112 its reverse (2110121211), we get a palindrome (3231331323).
The spelling of 1121210112 in words is "one billion, one hundred twenty-one million, two hundred ten thousand, one hundred twelve".
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