| Base | Representation |
|---|---|
| bin | 110000001101000010010001… |
| … | …001010101010011010000100 |
| 3 | 1000210122012021100222212201200 |
| 4 | 300031002101022222122010 |
| 5 | 210241420114413101040 |
| 6 | 2030520214541222500 |
| 7 | 62440432501410561 |
| oct | 6015022112523204 |
| 9 | 1023565240885650 |
| 10 | 212002021222020 |
| 11 | 6160660910a177 |
| 12 | 1b93b4b3b61a30 |
| 13 | 913a921646513 |
| 14 | 3a4cd49c23868 |
| 15 | 19799d4665630 |
| hex | c0d0912aa684 |
212002021222020 has 36 divisors (see below), whose sum is σ = 643072797707340. Its totient is φ = 56533872325824.
The previous prime is 212002021222009. The next prime is 212002021222021. The reversal of 212002021222020 is 20222120200212.
212002021222020 is a `hidden beast` number, since 21 + 200 + 202 + 1 + 2 + 220 + 20 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 87148348867584 + 124853672354436 = 9335328^2 + 11173794^2 .
It is a tau number, because it is divible by the number of its divisors (36).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 212002021221984 and 212002021222002.
It is not an unprimeable number, because it can be changed into a prime (212002021222021) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 588894503215 + ... + 588894503574.
Almost surely, 2212002021222020 is an apocalyptic number.
212002021222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
212002021222020 is an abundant number, since it is smaller than the sum of its proper divisors (431070776485320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212002021222020 is a wasteful number, since it uses less digits than its factorization.
212002021222020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1177789006804 (or 1177789006799 counting only the distinct ones).
The product of its (nonzero) digits is 256, while the sum is 18.
Adding to 212002021222020 its reverse (20222120200212), we get a palindrome (232224141422232).
The spelling of 212002021222020 in words is "two hundred twelve trillion, two billion, twenty-one million, two hundred twenty-two thousand, twenty".
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