Base | Representation |
---|---|
bin | 100000010100101001111… |
… | …010001100011100101110 |
3 | 21212100022022221202111010 |
4 | 200110221322030130232 |
5 | 242343010002310410 |
6 | 4420223350410050 |
7 | 316322302536246 |
oct | 40245172143456 |
9 | 7770268852433 |
10 | 2221201213230 |
11 | 7870081a630a |
12 | 2ba597960926 |
13 | 1315c608891c |
14 | 797145c0b26 |
15 | 3cba2897c20 |
hex | 20529e8c72e |
2221201213230 has 32 divisors (see below), whose sum is σ = 5405965774848. Its totient is φ = 583977783200.
The previous prime is 2221201213199. The next prime is 2221201213237. The reversal of 2221201213230 is 323121021222.
It is a junction number, because it is equal to n+sod(n) for n = 2221201213197 and 2221201213206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2221201213237) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 521406606 + ... + 521410865.
It is an arithmetic number, because the mean of its divisors is an integer number (168936430464).
Almost surely, 22221201213230 is an apocalyptic number.
2221201213230 is an abundant number, since it is smaller than the sum of its proper divisors (3184764561618).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2221201213230 is a wasteful number, since it uses less digits than its factorization.
2221201213230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1042817552.
The product of its (nonzero) digits is 576, while the sum is 21.
Adding to 2221201213230 its reverse (323121021222), we get a palindrome (2544322234452).
The spelling of 2221201213230 in words is "two trillion, two hundred twenty-one billion, two hundred one million, two hundred thirteen thousand, two hundred thirty".
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