| Base | Representation |
|---|---|
| bin | 1100111011011000110… |
| … | …1000010001011101100 |
| 3 | 210020021112201021120120 |
| 4 | 3032312031002023230 |
| 5 | 12114330122432340 |
| 6 | 250010442044540 |
| 7 | 22021564366311 |
| oct | 3166615021354 |
| 9 | 706245637516 |
| 10 | 222100202220 |
| 11 | 86212857236 |
| 12 | 37064aa9750 |
| 13 | 17c36b55a00 |
| 14 | aa6d2a6d08 |
| 15 | 5b9d7974d0 |
| hex | 33b63422ec |
222100202220 has 144 divisors (see below), whose sum is σ = 673853386752. Its totient is φ = 54633795840.
The previous prime is 222100202189. The next prime is 222100202239. The reversal of 222100202220 is 22202001222.
222100202220 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 222100202220.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16856235 + ... + 16869405.
It is an arithmetic number, because the mean of its divisors is an integer number (4679537408).
Almost surely, 2222100202220 is an apocalyptic number.
222100202220 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 222100202220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336926693376).
222100202220 is an abundant number, since it is smaller than the sum of its proper divisors (451753184532).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
222100202220 is a wasteful number, since it uses less digits than its factorization.
222100202220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14872 (or 14857 counting only the distinct ones).
The product of its (nonzero) digits is 128, while the sum is 15.
Adding to 222100202220 its reverse (22202001222), we get a palindrome (244302203442).
The spelling of 222100202220 in words is "two hundred twenty-two billion, one hundred million, two hundred two thousand, two hundred twenty".
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