Base | Representation |
---|---|
bin | 1010001101001101100111… |
… | …1100111111010111011100 |
3 | 1110201211020020002210002210 |
4 | 2203103121330333113130 |
5 | 2432330340433034322 |
6 | 35511211113520420 |
7 | 2235525243335163 |
oct | 243233174772734 |
9 | 43654206083083 |
10 | 11222111221212 |
11 | 36372a8251951 |
12 | 1312b06413110 |
13 | 635318637378 |
14 | 2ab2200aa3da |
15 | 146da5dcb70c |
hex | a34d9f3f5dc |
11222111221212 has 48 divisors (see below), whose sum is σ = 26902265341952. Its totient is φ = 3638299187520.
The previous prime is 11222111221207. The next prime is 11222111221229. The reversal of 11222111221212 is 21212211122211.
It is a super-2 number, since 2×112221112212122 (a number of 27 digits) contains 22 as substring.
It is a nude number because it is divisible by every one of its digits.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3288748 + ... + 5767155.
Almost surely, 211222111221212 is an apocalyptic number.
11222111221212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
11222111221212 is an abundant number, since it is smaller than the sum of its proper divisors (15680154120740).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
11222111221212 is a wasteful number, since it uses less digits than its factorization.
11222111221212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9058738 (or 9058736 counting only the distinct ones).
The product of its digits is 128, while the sum is 21.
Adding to 11222111221212 its reverse (21212211122211), we get a palindrome (32434322343423).
Subtracting 11222111221212 from its reverse (21212211122211), we obtain a palindrome (9990099900999).
The spelling of 11222111221212 in words is "eleven trillion, two hundred twenty-two billion, one hundred eleven million, two hundred twenty-one thousand, two hundred twelve".
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