Base | Representation |
---|---|
bin | 10001110000001111101… |
… | …001000011011010111101 |
3 | 11022122010012120200002111 |
4 | 101300033221003122331 |
5 | 124442111440212341 |
6 | 2332250412054021 |
7 | 154100362342231 |
oct | 21601751033275 |
9 | 4278105520074 |
10 | 1220033132221 |
11 | 43045a995912 |
12 | 17854a764311 |
13 | 8b082ac31b7 |
14 | 4309ad965c1 |
15 | 21b087ed681 |
hex | 11c0fa436bd |
1220033132221 has 8 divisors (see below), whose sum is σ = 1264658457600. Its totient is φ = 1175737145520.
The previous prime is 1220033132141. The next prime is 1220033132231. The reversal of 1220033132221 is 1222313300221.
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 1220033132221 - 225 = 1219999577789 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1220033132192 and 1220033132201.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1220033132231) 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, 82327126 + ... + 82341943.
It is an arithmetic number, because the mean of its divisors is an integer number (158082307200).
Almost surely, 21220033132221 is an apocalyptic number.
It is an amenable number.
1220033132221 is a deficient number, since it is larger than the sum of its proper divisors (44625325379).
1220033132221 is a wasteful number, since it uses less digits than its factorization.
1220033132221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 164669339.
The product of its (nonzero) digits is 864, while the sum is 22.
Adding to 1220033132221 its reverse (1222313300221), we get a palindrome (2442346432442).
The spelling of 1220033132221 in words is "one trillion, two hundred twenty billion, thirty-three million, one hundred thirty-two thousand, two hundred twenty-one".
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