Base | Representation |
---|---|
bin | 110010001111111110011110… |
… | …011110011111111101001100 |
3 | 1001222111102010222202101222210 |
4 | 302033332132132133331030 |
5 | 212431331402424323040 |
6 | 2102010031334310420 |
7 | 64356511000553424 |
oct | 6217763636377514 |
9 | 1058442128671883 |
10 | 221000201011020 |
11 | 64465728009892 |
12 | 209533a01b8410 |
13 | 96412ca38a982 |
14 | 3c80676c91484 |
15 | 1a83ac8145480 |
hex | c8ff9e79ff4c |
221000201011020 has 48 divisors (see below), whose sum is σ = 618801267839328. Its totient is φ = 58933319792640.
The previous prime is 221000201011013. The next prime is 221000201011091. The reversal of 221000201011020 is 20110102000122.
It is a super-2 number, since 2×2210002010110202 (a number of 29 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a junction number, because it is equal to n+sod(n) for n = 221000201010987 and 221000201011005.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73535292 + ... + 76481628.
It is an arithmetic number, because the mean of its divisors is an integer number (12891693079986).
Almost surely, 2221000201011020 is an apocalyptic number.
221000201011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
221000201011020 is an abundant number, since it is smaller than the sum of its proper divisors (397801066828308).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
221000201011020 is a wasteful number, since it uses less digits than its factorization.
221000201011020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4196490 (or 4196488 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 12.
Adding to 221000201011020 its reverse (20110102000122), we get a palindrome (241110303011142).
The spelling of 221000201011020 in words is "two hundred twenty-one trillion, two hundred one million, eleven thousand, twenty".
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