Base | Representation |
---|---|
bin | 10110100010101011… |
… | …11011101011011001 |
3 | 1011020102021111200012 |
4 | 23101111323223121 |
5 | 144241120402301 |
6 | 5320514251305 |
7 | 605621225051 |
oct | 132125735331 |
9 | 34212244605 |
10 | 12102122201 |
11 | 5150372594 |
12 | 2418b86b35 |
13 | 11ab36c270 |
14 | 82b402561 |
15 | 4ac6e3ebb |
hex | 2d157bad9 |
12102122201 has 8 divisors (see below), whose sum is σ = 13038896640. Its totient is φ = 11166182352.
The previous prime is 12102122191. The next prime is 12102122203. The reversal of 12102122201 is 10222120121.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-12102122201 is a prime.
It is a super-2 number, since 2×121021222012 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (12102122203) 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, 178361 + ... + 236678.
It is an arithmetic number, because the mean of its divisors is an integer number (1629862080).
Almost surely, 212102122201 is an apocalyptic number.
It is an amenable number.
12102122201 is a deficient number, since it is larger than the sum of its proper divisors (936774439).
12102122201 is a wasteful number, since it uses less digits than its factorization.
12102122201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 417295.
The product of its (nonzero) digits is 32, while the sum is 14.
Adding to 12102122201 its reverse (10222120121), we get a palindrome (22324242322).
The spelling of 12102122201 in words is "twelve billion, one hundred two million, one hundred twenty-two thousand, two hundred one".
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