| Base | Representation |
|---|---|
| bin | 10100100101111011… |
| … | …100010101110101100 |
| 3 | 2010001222010110020120 |
| 4 | 110211323202232230 |
| 5 | 330240431432340 |
| 6 | 14054023444540 |
| 7 | 1411636055262 |
| oct | 244573425654 |
| 9 | 63058113216 |
| 10 | 22111202220 |
| 11 | 9417219548 |
| 12 | 4350bb6750 |
| 13 | 2114bb8613 |
| 14 | 10da84a432 |
| 15 | 8962974d0 |
| hex | 525ee2bac |
22111202220 has 96 divisors (see below), whose sum is σ = 63793728768. Its totient is φ = 5718097152.
The previous prime is 22111202219. The next prime is 22111202227. The reversal of 22111202220 is 2220211122.
It is a super-2 number, since 2×221112022202 (a number of 21 digits) contains 22 as substring.
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 22111202220.
It is not an unprimeable number, because it can be changed into a prime (22111202227) by changing a digit.
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 31 ways as a sum of consecutive naturals, for example, 665319 + ... + 697761.
It is an arithmetic number, because the mean of its divisors is an integer number (664518008).
Almost surely, 222111202220 is an apocalyptic number.
22111202220 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 22111202220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31896864384).
22111202220 is an abundant number, since it is smaller than the sum of its proper divisors (41682526548).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
22111202220 is a wasteful number, since it uses less digits than its factorization.
22111202220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 32799 (or 32797 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 15.
Adding to 22111202220 its reverse (2220211122), we get a palindrome (24331413342).
The spelling of 22111202220 in words is "twenty-two billion, one hundred eleven million, two hundred two thousand, two hundred twenty".
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