| Base | Representation |
|---|---|
| bin | 110011110010011000… |
| … | …0100000000111100000 |
| 3 | 101122001120012010212220 |
| 4 | 1213210300200013200 |
| 5 | 3310230244231422 |
| 6 | 123031245151040 |
| 7 | 11014640161566 |
| oct | 1474460400740 |
| 9 | 348046163786 |
| 10 | 111212102112 |
| 11 | 4318a3723a1 |
| 12 | 1967885b480 |
| 13 | a64466a9a7 |
| 14 | 5550183a36 |
| 15 | 2d5d723e5c |
| hex | 19e4c201e0 |
111212102112 has 96 divisors (see below), whose sum is σ = 295782842880. Its totient is φ = 36582174720.
The previous prime is 111212102083. The next prime is 111212102119. The reversal of 111212102112 is 211201212111.
It is a happy number.
111212102112 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (96).
It is a junction number, because it is equal to n+sod(n) for n = 111212102091 and 111212102100.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (111212102119) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25487643 + ... + 25492005.
It is an arithmetic number, because the mean of its divisors is an integer number (3081071280).
Almost surely, 2111212102112 is an apocalyptic number.
111212102112 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 111212102112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147891421440).
111212102112 is an abundant number, since it is smaller than the sum of its proper divisors (184570740768).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
111212102112 is a wasteful number, since it uses less digits than its factorization.
111212102112 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7816 (or 7808 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 15.
Adding to 111212102112 its reverse (211201212111), we get a palindrome (322413314223).
The spelling of 111212102112 in words is "one hundred eleven billion, two hundred twelve million, one hundred two thousand, one hundred twelve".
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