| Base | Representation |
|---|---|
| bin | 1100010110111101010… |
| … | …0011000001000101100 |
| 3 | 202022001000102212002021 |
| 4 | 3011233110120020230 |
| 5 | 11434313134311340 |
| 6 | 241312224035524 |
| 7 | 21224340544414 |
| oct | 3055724301054 |
| 9 | 668030385067 |
| 10 | 212321010220 |
| 11 | 82054747580 |
| 12 | 35195a62ba4 |
| 13 | 17038b29977 |
| 14 | a3c25c1644 |
| 15 | 57c9ea3e4a |
| hex | 316f51822c |
212321010220 has 96 divisors (see below), whose sum is σ = 491542732800. Its totient is φ = 76393632000.
The previous prime is 212321010211. The next prime is 212321010229. The reversal of 212321010220 is 22010123212.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (212321010211) and next prime (212321010229).
It is a super-2 number, since 2×2123210102202 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 212321010194 and 212321010203.
It is not an unprimeable number, because it can be changed into a prime (212321010229) 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 31 ways as a sum of consecutive naturals, for example, 63969721 + ... + 63973039.
It is an arithmetic number, because the mean of its divisors is an integer number (5120236800).
Almost surely, 2212321010220 is an apocalyptic number.
212321010220 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 212321010220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245771366400).
212321010220 is an abundant number, since it is smaller than the sum of its proper divisors (279221722580).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212321010220 is a wasteful number, since it uses less digits than its factorization.
212321010220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6319 (or 6317 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 16.
Adding to 212321010220 its reverse (22010123212), we get a palindrome (234331133432).
The spelling of 212321010220 in words is "two hundred twelve billion, three hundred twenty-one million, ten thousand, two hundred twenty".
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