Base | Representation |
---|---|
bin | 10001110010000101011… |
… | …110111110011110100101 |
3 | 11022211012222210012222220 |
4 | 101302011132332132211 |
5 | 130010134102431041 |
6 | 2333214515342553 |
7 | 154200360222150 |
oct | 21620536763645 |
9 | 4284188705886 |
10 | 1222010202021 |
11 | 4312849a06a4 |
12 | 178a008b1a59 |
13 | 8b30959c49b |
14 | 432077a2c97 |
15 | 21bc2181d66 |
hex | 11c857be7a5 |
1222010202021 has 16 divisors (see below), whose sum is σ = 1864651204224. Its totient is φ = 697338886464.
The previous prime is 1222010201987. The next prime is 1222010202031. The reversal of 1222010202021 is 1202020102221.
It is not a de Polignac number, because 1222010202021 - 214 = 1222010185637 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1222010202031) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39678306 + ... + 39709091.
It is an arithmetic number, because the mean of its divisors is an integer number (116540700264).
Almost surely, 21222010202021 is an apocalyptic number.
It is an amenable number.
1222010202021 is a deficient number, since it is larger than the sum of its proper divisors (642641002203).
1222010202021 is an equidigital number, since it uses as much as digits as its factorization.
1222010202021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 79388140.
The product of its (nonzero) digits is 64, while the sum is 15.
Adding to 1222010202021 its reverse (1202020102221), we get a palindrome (2424030304242).
The spelling of 1222010202021 in words is "one trillion, two hundred twenty-two billion, ten million, two hundred two thousand, twenty-one".
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