| Base | Representation |
|---|---|
| bin | 1011101101100111110… |
| … | …0100010101001000100 |
| 3 | 201020101201101020210100 |
| 4 | 2323121330202221010 |
| 5 | 11244102101201040 |
| 6 | 232235210324100 |
| 7 | 20352354315531 |
| oct | 2733174425104 |
| 9 | 636351336710 |
| 10 | 201225022020 |
| 11 | 783803083a0 |
| 12 | 32bb9a29630 |
| 13 | 15c8b064889 |
| 14 | 9a4ca85d88 |
| 15 | 537aca3b30 |
| hex | 2ed9f22a44 |
201225022020 has 144 divisors (see below), whose sum is σ = 666566828928. Its totient is φ = 48730913280.
The previous prime is 201225022007. The next prime is 201225022043. The reversal of 201225022020 is 20220522102.
201225022020 is a `hidden beast` number, since 2 + 0 + 122 + 502 + 20 + 20 = 666.
201225022020 is digitally balanced in base 2, because in such base 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 (18).
It is a junction number, because it is equal to n+sod(n) for n = 201225021984 and 201225022002.
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, 1862112 + ... + 1967208.
It is an arithmetic number, because the mean of its divisors is an integer number (4628936312).
Almost surely, 2201225022020 is an apocalyptic number.
201225022020 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 201225022020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333283414464).
201225022020 is an abundant number, since it is smaller than the sum of its proper divisors (465341806908).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
201225022020 is a wasteful number, since it uses less digits than its factorization.
201225022020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 106090 (or 106085 counting only the distinct ones).
The product of its (nonzero) digits is 320, while the sum is 18.
Adding to 201225022020 its reverse (20220522102), we get a palindrome (221445544122).
The spelling of 201225022020 in words is "two hundred one billion, two hundred twenty-five million, twenty-two thousand, twenty".
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