| Base | Representation |
|---|---|
| bin | 110000001101000010010000… |
| … | …100111011111011110101100 |
| 3 | 1000210122012020201122110112121 |
| 4 | 300031002100213133132230 |
| 5 | 210241420110033032340 |
| 6 | 2030520214011442324 |
| 7 | 62440432330140646 |
| oct | 6015022047373654 |
| 9 | 1023565221573477 |
| 10 | 212002012002220 |
| 11 | 61606603992200 |
| 12 | 1b93b4b0a563a4 |
| 13 | 913a91c768b0b |
| 14 | 3a4cd48903896 |
| 15 | 19799d394394a |
| hex | c0d0909df7ac |
212002012002220 has 144 divisors (see below), whose sum is σ = 496005804403200. Its totient is φ = 76045955356800.
The previous prime is 212002012002211. The next prime is 212002012002229. The reversal of 212002012002220 is 22200210200212.
It is an interprime number because it is at equal distance from previous prime (212002012002211) and next prime (212002012002229).
It is a junction number, because it is equal to n+sod(n) for n = 212002012002194 and 212002012002203.
It is not an unprimeable number, because it can be changed into a prime (212002012002229) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 208069171 + ... + 209085589.
It is an arithmetic number, because the mean of its divisors is an integer number (3444484752800).
Almost surely, 2212002012002220 is an apocalyptic number.
212002012002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 212002012002220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248002902201600).
212002012002220 is an abundant number, since it is smaller than the sum of its proper divisors (284003792400980).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212002012002220 is a wasteful number, since it uses less digits than its factorization.
212002012002220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1017620 (or 1017607 counting only the distinct ones).
The product of its (nonzero) digits is 128, while the sum is 16.
Adding to 212002012002220 its reverse (22200210200212), we get a palindrome (234202222202432).
The spelling of 212002012002220 in words is "two hundred twelve trillion, two billion, twelve million, two thousand, two hundred twenty".
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