| Base | Representation |
|---|---|
| bin | 110100001101011110… |
| … | …0000110011010010010 |
| 3 | 101201101220122122022120 |
| 4 | 1220122330012122102 |
| 5 | 3314111001042320 |
| 6 | 123301400315110 |
| 7 | 11046315505032 |
| oct | 1503274063222 |
| 9 | 351356578276 |
| 10 | 112121112210 |
| 11 | 43606499108 |
| 12 | 19891172a96 |
| 13 | a75aa9a4a3 |
| 14 | 55d8ba78c2 |
| 15 | 2db3430440 |
| hex | 1a1af06692 |
112121112210 has 64 divisors (see below), whose sum is σ = 276523777152. Its totient is φ = 29074000896.
The previous prime is 112121112209. The next prime is 112121112251. The reversal of 112121112210 is 12211121211.
It is a happy number.
It is a super-2 number, since 2×1121211122102 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 112121112210.
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, 1944049 + ... + 2000891.
It is an arithmetic number, because the mean of its divisors is an integer number (4320684018).
Almost surely, 2112121112210 is an apocalyptic number.
112121112210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 112121112210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138261888576).
112121112210 is an abundant number, since it is smaller than the sum of its proper divisors (164402664942).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
112121112210 is a wasteful number, since it uses less digits than its factorization.
112121112210 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 58667.
The product of its (nonzero) digits is 16, while the sum is 15.
Adding to 112121112210 its reverse (12211121211), we get a palindrome (124332233421).
Subtracting from 112121112210 its reverse (12211121211), we obtain a palindrome (99909990999).
The spelling of 112121112210 in words is "one hundred twelve billion, one hundred twenty-one million, one hundred twelve thousand, two hundred ten".
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