Base | Representation |
---|---|
bin | 111111001101111… |
… | …0001110010001110 |
3 | 12110211102200111012 |
4 | 1332123301302032 |
5 | 13321012223042 |
6 | 550252525222 |
7 | 103364665460 |
oct | 17633616216 |
9 | 5424380435 |
10 | 2121211022 |
11 | 999406267 |
12 | 4b2480812 |
13 | 27a606568 |
14 | 161a0c130 |
15 | c6356e82 |
hex | 7e6f1c8e |
2121211022 has 32 divisors (see below), whose sum is σ = 3809740800. Its totient is φ = 866622240.
The previous prime is 2121211021. The next prime is 2121211033. The reversal of 2121211022 is 2201121212.
It is a super-3 number, since 3×21212110223 (a number of 29 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (14).
It is a junction number, because it is equal to n+sod(n) for n = 2121210988 and 2121211006.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2121211021) by changing a digit.
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 15 ways as a sum of consecutive naturals, for example, 7397 + ... + 65552.
It is an arithmetic number, because the mean of its divisors is an integer number (119054400).
Almost surely, 22121211022 is an apocalyptic number.
2121211022 is a deficient number, since it is larger than the sum of its proper divisors (1688529778).
2121211022 is a wasteful number, since it uses less digits than its factorization.
2121211022 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 73056.
The product of its (nonzero) digits is 32, while the sum is 14.
The square root of 2121211022 is about 46056.6067139124. The cubic root of 2121211022 is about 1284.8762207731.
Adding to 2121211022 its reverse (2201121212), we get a palindrome (4322332234).
The spelling of 2121211022 in words is "two billion, one hundred twenty-one million, two hundred eleven thousand, twenty-two".
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