Base | Representation |
---|---|
bin | 10110100100110101… |
… | …11001101111011001 |
3 | 1011021200022001202211 |
4 | 23102122321233121 |
5 | 144310232432301 |
6 | 5322401555121 |
7 | 606231006322 |
oct | 132232715731 |
9 | 34250261684 |
10 | 12120202201 |
11 | 515a5a1338 |
12 | 2423045aa1 |
13 | 11b202c7a3 |
14 | 82d98b449 |
15 | 4ae0b6051 |
hex | 2d26b9bd9 |
12120202201 has 16 divisors (see below), whose sum is σ = 12875765760. Its totient is φ = 11376650880.
The previous prime is 12120202189. The next prime is 12120202217. The reversal of 12120202201 is 10220202121.
It is a happy number.
It is a cyclic number.
It is not a de Polignac number, because 12120202201 - 25 = 12120202169 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12120202271) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2065011 + ... + 2070871.
It is an arithmetic number, because the mean of its divisors is an integer number (804735360).
Almost surely, 212120202201 is an apocalyptic number.
It is an amenable number.
12120202201 is a deficient number, since it is larger than the sum of its proper divisors (755563559).
12120202201 is a wasteful number, since it uses less digits than its factorization.
12120202201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6864.
The product of its (nonzero) digits is 32, while the sum is 13.
Adding to 12120202201 its reverse (10220202121), we get a palindrome (22340404322).
The spelling of 12120202201 in words is "twelve billion, one hundred twenty million, two hundred two thousand, two hundred one".
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