| Base | Representation |
|---|---|
| bin | 10100110010011000… |
| … | …110110100011111100 |
| 3 | 2010121112102021001200 |
| 4 | 110302120312203330 |
| 5 | 331202433242340 |
| 6 | 14130451335500 |
| 7 | 1420054450005 |
| oct | 246230664374 |
| 9 | 63545367050 |
| 10 | 22320212220 |
| 11 | 95141a5889 |
| 12 | 43aabb1590 |
| 13 | 21492a8987 |
| 14 | 111a4d61ac |
| 15 | 8a97d1330 |
| hex | 5326368fc |
22320212220 has 144 divisors (see below), whose sum is σ = 73436152608. Its totient is φ = 5465272320.
The previous prime is 22320212183. The next prime is 22320212221. The reversal of 22320212220 is 2221202322.
22320212220 is a `hidden beast` number, since 2 + 232 + 0 + 212 + 220 = 666.
It is a super-3 number, since 3×223202122203 (a number of 32 digits) contains 333 as substring.
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 = 22320212193 and 22320212202.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (22320212221) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36507 + ... + 214413.
It is an arithmetic number, because the mean of its divisors is an integer number (509973282).
Almost surely, 222320212220 is an apocalyptic number.
22320212220 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 22320212220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36718076304).
22320212220 is an abundant number, since it is smaller than the sum of its proper divisors (51115940388).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
22320212220 is a wasteful number, since it uses less digits than its factorization.
22320212220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 177980 (or 177975 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 18.
Adding to 22320212220 its reverse (2221202322), we get a palindrome (24541414542).
The spelling of 22320212220 in words is "twenty-two billion, three hundred twenty million, two hundred twelve thousand, two hundred twenty".
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