Base | Representation |
---|---|
bin | 10001011111011101011… |
… | …111111001011110101101 |
3 | 11020220121021122102011020 |
4 | 101133131133321132231 |
5 | 124143210033032341 |
6 | 2320110252444353 |
7 | 152561656303512 |
oct | 21373537713655 |
9 | 4226537572136 |
10 | 1202012002221 |
11 | 423852491148 |
12 | 174b5b4796b9 |
13 | 894703a5074 |
14 | 4226b829309 |
15 | 2140166e566 |
hex | 117dd7f97ad |
1202012002221 has 16 divisors (see below), whose sum is σ = 1605030336000. Its totient is φ = 800167701168.
The previous prime is 1202012002193. The next prime is 1202012002283. The reversal of 1202012002221 is 1222002102021.
It is not a de Polignac number, because 1202012002221 - 229 = 1201475131309 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 1202012002221.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1202012002421) 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, 37713190 + ... + 37745048.
It is an arithmetic number, because the mean of its divisors is an integer number (100314396000).
Almost surely, 21202012002221 is an apocalyptic number.
It is an amenable number.
1202012002221 is a deficient number, since it is larger than the sum of its proper divisors (403018333779).
1202012002221 is a wasteful number, since it uses less digits than its factorization.
1202012002221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 49888.
The product of its (nonzero) digits is 64, while the sum is 15.
Adding to 1202012002221 its reverse (1222002102021), we get a palindrome (2424014104242).
The spelling of 1202012002221 in words is "one trillion, two hundred two billion, twelve million, two thousand, two hundred twenty-one".
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