Base | Representation |
---|---|
bin | 110011110010101001… |
… | …0110111110100110000 |
3 | 101122002012010220021121 |
4 | 1213211102313310300 |
5 | 3310240101041422 |
6 | 123032210232024 |
7 | 11015106566035 |
oct | 1474522676460 |
9 | 348065126247 |
10 | 111221112112 |
11 | 43194466780 |
12 | 1967b885614 |
13 | a6464a3a56 |
14 | 555144b38c |
15 | 2d5e4038c7 |
hex | 19e54b7d30 |
111221112112 has 40 divisors (see below), whose sum is σ = 235197602640. Its totient is φ = 50529972480.
The previous prime is 111221112043. The next prime is 111221112131. The reversal of 111221112112 is 211211122111.
111221112112 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (16).
It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201378 + ... + 512830.
It is an arithmetic number, because the mean of its divisors is an integer number (5879940066).
Almost surely, 2111221112112 is an apocalyptic number.
It is an amenable number.
111221112112 is an abundant number, since it is smaller than the sum of its proper divisors (123976490528).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
111221112112 is a wasteful number, since it uses less digits than its factorization.
111221112112 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 313501 (or 313495 counting only the distinct ones).
The product of its digits is 16, while the sum is 16.
Adding to 111221112112 its reverse (211211122111), we get a palindrome (322432234223).
Subtracting 111221112112 from its reverse (211211122111), we obtain a palindrome (99990009999).
It can be divided in two parts, 11122111 and 2112, that multiplied together give a palindrome (23489898432).
The spelling of 111221112112 in words is "one hundred eleven billion, two hundred twenty-one million, one hundred twelve thousand, one hundred twelve".
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