Base | Representation |
---|---|
bin | 10001110000001111101… |
… | …001011000111011101011 |
3 | 11022122010012202010221211 |
4 | 101300033221120323223 |
5 | 124442112001022311 |
6 | 2332250414013551 |
7 | 154100363160142 |
oct | 21601751307353 |
9 | 4278105663854 |
10 | 1220033220331 |
11 | 43045aa46032 |
12 | 17854a7a72b7 |
13 | 8b082b24333 |
14 | 4309adba759 |
15 | 21b08819821 |
hex | 11c0fa58eeb |
1220033220331 has 2 divisors, whose sum is σ = 1220033220332. Its totient is φ = 1220033220330.
The previous prime is 1220033220317. The next prime is 1220033220337. The reversal of 1220033220331 is 1330223300221.
It is a strong prime.
It is an emirp because it is prime and its reverse (1330223300221) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1220033220331 - 215 = 1220033187563 is a prime.
It is a super-2 number, since 2×12200332203312 (a number of 25 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (1220033220337) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610016610165 + 610016610166.
It is an arithmetic number, because the mean of its divisors is an integer number (610016610166).
Almost surely, 21220033220331 is an apocalyptic number.
1220033220331 is a deficient number, since it is larger than the sum of its proper divisors (1).
1220033220331 is an equidigital number, since it uses as much as digits as its factorization.
1220033220331 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1296, while the sum is 22.
Adding to 1220033220331 its reverse (1330223300221), we get a palindrome (2550256520552).
The spelling of 1220033220331 in words is "one trillion, two hundred twenty billion, thirty-three million, two hundred twenty thousand, three hundred thirty-one".
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