Base | Representation |
---|---|
bin | 100000010011101001011… |
… | …110011111111010100111 |
3 | 21212020111222212011100121 |
4 | 200103221132133322213 |
5 | 242333301233223421 |
6 | 4415524213022411 |
7 | 316253435266465 |
oct | 40235136377247 |
9 | 7766458764317 |
10 | 2220120211111 |
11 | 786602a87430 |
12 | 2ba335924a07 |
13 | 13148312a1ba |
14 | 79650bc9835 |
15 | 3cb3ca15d41 |
hex | 204e979fea7 |
2220120211111 has 8 divisors (see below), whose sum is σ = 2467646478864. Its totient is φ = 1980210136320.
The previous prime is 2220120211109. The next prime is 2220120211151. The reversal of 2220120211111 is 1111120210222.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2220120211111 - 21 = 2220120211109 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2220120211151) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1904047626 + ... + 1904048791.
It is an arithmetic number, because the mean of its divisors is an integer number (308455809858).
Almost surely, 22220120211111 is an apocalyptic number.
2220120211111 is a deficient number, since it is larger than the sum of its proper divisors (247526267753).
2220120211111 is a wasteful number, since it uses less digits than its factorization.
2220120211111 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3808096481.
The product of its (nonzero) digits is 32, while the sum is 16.
Adding to 2220120211111 its reverse (1111120210222), we get a palindrome (3331240421333).
The spelling of 2220120211111 in words is "two trillion, two hundred twenty billion, one hundred twenty million, two hundred eleven thousand, one hundred eleven".
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