Base | Representation |
---|---|
bin | 1000001101000011… |
… | …0011011010111101 |
3 | 12200110212101012220 |
4 | 2003100303122331 |
5 | 14002232021341 |
6 | 1002305115553 |
7 | 105400364055 |
oct | 20320633275 |
9 | 5613771186 |
10 | 2202220221 |
11 | a30106713 |
12 | 515628bb9 |
13 | 29132b0b6 |
14 | 16c698565 |
15 | cd509a66 |
hex | 834336bd |
2202220221 has 16 divisors (see below), whose sum is σ = 2957176320. Its totient is φ = 1457740800.
The previous prime is 2202220219. The next prime is 2202220271. The reversal of 2202220221 is 1220222022.
2202220221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 2202220221 - 21 = 2202220219 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 2202220221.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2202220211) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264165 + ... + 272373.
It is an arithmetic number, because the mean of its divisors is an integer number (184823520).
Almost surely, 22202220221 is an apocalyptic number.
It is an amenable number.
2202220221 is a deficient number, since it is larger than the sum of its proper divisors (754956099).
2202220221 is a wasteful number, since it uses less digits than its factorization.
2202220221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8836.
The product of its (nonzero) digits is 128, while the sum is 15.
The square root of 2202220221 is about 46927.8192653356. The cubic root of 2202220221 is about 1301.0288149736.
Adding to 2202220221 its reverse (1220222022), we get a palindrome (3422442243).
The spelling of 2202220221 in words is "two billion, two hundred two million, two hundred twenty thousand, two hundred twenty-one".
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