Base | Representation |
---|---|
bin | 1001101001101001000011… |
… | …10101111111001101011010 |
3 | 2210010210200202022220012022 |
4 | 10310310201311333031122 |
5 | 10240200124302211302 |
6 | 113045130333014442 |
7 | 4320144654643622 |
oct | 464644165771532 |
9 | 83123622286168 |
10 | 21222001210202 |
11 | 6842222476a81 |
12 | 2468b71324422 |
13 | bac2c2a55500 |
14 | 53521675d882 |
15 | 26c07633d8a2 |
hex | 134d21d7f35a |
21222001210202 has 24 divisors (see below), whose sum is σ = 34494520192380. Its totient is φ = 9787817994240.
The previous prime is 21222001210199. The next prime is 21222001210217. The reversal of 21222001210202 is 20201210022212.
It is a happy number.
It can be written as a sum of positive squares in 6 ways, for example, as 140670753721 + 21081330456481 = 375061^2 + 4591441^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21804449 + ... + 22756932.
Almost surely, 221222001210202 is an apocalyptic number.
21222001210202 is a deficient number, since it is larger than the sum of its proper divisors (13272518982178).
21222001210202 is a wasteful number, since it uses less digits than its factorization.
21222001210202 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 44562818 (or 44562805 counting only the distinct ones).
The product of its (nonzero) digits is 128, while the sum is 17.
Adding to 21222001210202 its reverse (20201210022212), we get a palindrome (41423211232414).
The spelling of 21222001210202 in words is "twenty-one trillion, two hundred twenty-two billion, one million, two hundred ten thousand, two hundred two".
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