Base | Representation |
---|---|
bin | 10010101010100111… |
… | …11011011100111001 |
3 | 221212101200211111211 |
4 | 21111103323130321 |
5 | 131010413102301 |
6 | 4334221323121 |
7 | 503222661154 |
oct | 112523733471 |
9 | 27771624454 |
10 | 10021222201 |
11 | 428279a621 |
12 | 1b381064a1 |
13 | c3920aca3 |
14 | 6b0cc8c9b |
15 | 3d9ba1051 |
hex | 2554fb739 |
10021222201 has 2 divisors, whose sum is σ = 10021222202. Its totient is φ = 10021222200.
The previous prime is 10021222187. The next prime is 10021222207. The reversal of 10021222201 is 10222212001.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 10020010000 + 1212201 = 100100^2 + 1101^2 .
It is a cyclic number.
It is not a de Polignac number, because 10021222201 - 215 = 10021189433 is a prime.
It is not a weakly prime, because it can be changed into another prime (10021222207) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010611100 + 5010611101.
It is an arithmetic number, because the mean of its divisors is an integer number (5010611101).
Almost surely, 210021222201 is an apocalyptic number.
It is an amenable number.
10021222201 is a deficient number, since it is larger than the sum of its proper divisors (1).
10021222201 is an equidigital number, since it uses as much as digits as its factorization.
10021222201 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 32, while the sum is 13.
Adding to 10021222201 its reverse (10222212001), we get a palindrome (20243434202).
The spelling of 10021222201 in words is "ten billion, twenty-one million, two hundred twenty-two thousand, two hundred one".
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