| Base | Representation |
|---|---|
| bin | 1011101001011011100… |
| … | …1110001000001011100 |
| 3 | 201010111022212102220001 |
| 4 | 2322112321301001130 |
| 5 | 11234301124033040 |
| 6 | 231531430104044 |
| 7 | 20312445546400 |
| oct | 2722671610134 |
| 9 | 633438772801 |
| 10 | 200100221020 |
| 11 | 779533a3797 |
| 12 | 329451ab024 |
| 13 | 15b3c00c45b |
| 14 | 998352d100 |
| 15 | 531216e59a |
| hex | 2e96e7105c |
200100221020 has 144 divisors (see below), whose sum is σ = 514906308000. Its totient is φ = 64949133312.
The previous prime is 200100221011. The next prime is 200100221033. The reversal of 200100221020 is 20122001002.
200100221020 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 (10).
It is a junction number, because it is equal to n+sod(n) for n = 200100220988 and 200100221006.
It is a congruent number.
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, 35170336 + ... + 35176024.
It is an arithmetic number, because the mean of its divisors is an integer number (3575738250).
Almost surely, 2200100221020 is an apocalyptic number.
200100221020 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 200100221020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257453154000).
200100221020 is an abundant number, since it is smaller than the sum of its proper divisors (314806086980).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
200100221020 is a wasteful number, since it uses less digits than its factorization.
200100221020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7620 (or 7611 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 10.
Adding to 200100221020 its reverse (20122001002), we get a palindrome (220222222022).
The spelling of 200100221020 in words is "two hundred billion, one hundred million, two hundred twenty-one thousand, twenty".
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