Base | Representation |
---|---|
bin | 11101101111110011111… |
… | …10010001111010001101 |
3 | 10121201012222112202010120 |
4 | 32313321332101322031 |
5 | 113221230340232341 |
6 | 2101314033455153 |
7 | 133562422010253 |
oct | 16677176217215 |
9 | 3551188482116 |
10 | 1022101102221 |
11 | 36451a476131 |
12 | 14610b7114b9 |
13 | 754cb058c14 |
14 | 376817c45d3 |
15 | 1b8c1bb6066 |
hex | edf9f91e8d |
1022101102221 has 16 divisors (see below), whose sum is σ = 1389990481920. Its totient is φ = 667833558080.
The previous prime is 1022101102189. The next prime is 1022101102223. The reversal of 1022101102221 is 1222011012201.
It is a cyclic number.
It is not a de Polignac number, because 1022101102221 - 25 = 1022101102189 is a prime.
It is a super-3 number, since 3×10221011022213 (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a self number, because there is not a number n which added to its sum of digits gives 1022101102221.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1022101102223) 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, 3266061 + ... + 3565298.
It is an arithmetic number, because the mean of its divisors is an integer number (86874405120).
Almost surely, 21022101102221 is an apocalyptic number.
It is an amenable number.
1022101102221 is a deficient number, since it is larger than the sum of its proper divisors (367889379699).
1022101102221 is an equidigital number, since it uses as much as digits as its factorization.
1022101102221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6832356.
The product of its (nonzero) digits is 32, while the sum is 15.
Adding to 1022101102221 its reverse (1222011012201), we get a palindrome (2244112114422).
The spelling of 1022101102221 in words is "one trillion, twenty-two billion, one hundred one million, one hundred two thousand, two hundred twenty-one".
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