Base | Representation |
---|---|
bin | 10110101111101010… |
… | …11011001110111101 |
3 | 1011112000020011110200 |
4 | 23113311123032331 |
5 | 200002011304323 |
6 | 5335404554113 |
7 | 611413065150 |
oct | 132765331675 |
9 | 34460204420 |
10 | 12211041213 |
11 | 51a68a5aa8 |
12 | 2449552939 |
13 | 11c7ab6597 |
14 | 83ba75c97 |
15 | 4b705b443 |
hex | 2d7d5b3bd |
12211041213 has 24 divisors (see below), whose sum is σ = 20163431808. Its totient is φ = 6975826272.
The previous prime is 12211041211. The next prime is 12211041301. The reversal of 12211041213 is 31214011221.
It is not a de Polignac number, because 12211041213 - 21 = 12211041211 is a prime.
It is a super-2 number, since 2×122110412132 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12211041211) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 223831 + ... + 272987.
It is an arithmetic number, because the mean of its divisors is an integer number (840142992).
Almost surely, 212211041213 is an apocalyptic number.
It is an amenable number.
12211041213 is a deficient number, since it is larger than the sum of its proper divisors (7952390595).
12211041213 is a wasteful number, since it uses less digits than its factorization.
12211041213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 53113 (or 53110 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 18.
Adding to 12211041213 its reverse (31214011221), we get a palindrome (43425052434).
The spelling of 12211041213 in words is "twelve billion, two hundred eleven million, forty-one thousand, two hundred thirteen".
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