Base | Representation |
---|---|
bin | 111000010110101011… |
… | …1011011110011011001 |
3 | 102120101002212020211011 |
4 | 1300231113123303121 |
5 | 3440322132432301 |
6 | 131332414533521 |
7 | 11512664513563 |
oct | 1605527336331 |
9 | 376332766734 |
10 | 121020202201 |
11 | 47362827138 |
12 | 1b5555072a1 |
13 | b548678a02 |
14 | 5c00a32333 |
15 | 3234827a51 |
hex | 1c2d5dbcd9 |
121020202201 has 8 divisors (see below), whose sum is σ = 125864704064. Its totient is φ = 116267976720.
The previous prime is 121020202187. The next prime is 121020202223. The reversal of 121020202201 is 102202020121.
It is a happy number.
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 121020202201 - 25 = 121020202169 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (121020208201) 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, 23066421 + ... + 23071666.
It is an arithmetic number, because the mean of its divisors is an integer number (15733088008).
Almost surely, 2121020202201 is an apocalyptic number.
It is an amenable number.
121020202201 is a deficient number, since it is larger than the sum of its proper divisors (4844501863).
121020202201 is an equidigital number, since it uses as much as digits as its factorization.
121020202201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 46138191.
The product of its (nonzero) digits is 32, while the sum is 13.
Adding to 121020202201 its reverse (102202020121), we get a palindrome (223222222322).
The spelling of 121020202201 in words is "one hundred twenty-one billion, twenty million, two hundred two thousand, two hundred one".
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