Base | Representation |
---|---|
bin | 11010010110001… |
… | …01100011001010 |
3 | 120101212110220002 |
4 | 31023011203022 |
5 | 423034310442 |
6 | 33533003002 |
7 | 5322361244 |
oct | 1513054312 |
9 | 511773802 |
10 | 221010122 |
11 | 1038331a3 |
12 | 62023462 |
13 | 36a32428 |
14 | 214d1094 |
15 | 14609732 |
hex | d2c58ca |
221010122 has 8 divisors (see below), whose sum is σ = 331578372. Its totient is φ = 110484000.
The previous prime is 221010113. The next prime is 221010133.
It is a happy number.
221010122 is nontrivially palindromic in base 10.
221010122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 220849321 + 160801 = 14861^2 + 401^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14222 + ... + 25382.
Almost surely, 2221010122 is an apocalyptic number.
221010122 is a deficient number, since it is larger than the sum of its proper divisors (110568250).
221010122 is a wasteful number, since it uses less digits than its factorization.
221010122 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21064.
The product of its (nonzero) digits is 16, while the sum is 11.
The square root of 221010122 is about 14866.4091831215. The cubic root of 221010122 is about 604.6035897833.
Multiplying 221010122 by its sum of digits (11), we get a palindrome (2431111342).
The spelling of 221010122 in words is "two hundred twenty-one million, ten thousand, one hundred twenty-two".
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