Base | Representation |
---|---|
bin | 1100111000110111011… |
… | …0111100101111011001 |
3 | 210011112101001022101100 |
4 | 3032031312330233121 |
5 | 12111433332332441 |
6 | 245415342142013 |
7 | 21666035125626 |
oct | 3161566745731 |
9 | 704471038340 |
10 | 221423324121 |
11 | 859a576a74a |
12 | 36ab6281909 |
13 | 17b59850a1c |
14 | aa0742b34d |
15 | 5b5e140cb6 |
hex | 338ddbcbd9 |
221423324121 has 24 divisors (see below), whose sum is σ = 327675138336. Its totient is φ = 143997312960.
The previous prime is 221423324117. The next prime is 221423324147. The reversal of 221423324121 is 121423324122.
221423324121 is a `hidden beast` number, since 2 + 2 + 14 + 233 + 2 + 412 + 1 = 666.
It is not a de Polignac number, because 221423324121 - 22 = 221423324117 is a prime.
It is not an unprimeable number, because it can be changed into a prime (221423394121) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3363306 + ... + 3428508.
It is an arithmetic number, because the mean of its divisors is an integer number (13653130764).
Almost surely, 2221423324121 is an apocalyptic number.
It is an amenable number.
221423324121 is a deficient number, since it is larger than the sum of its proper divisors (106251814215).
221423324121 is a wasteful number, since it uses less digits than its factorization.
221423324121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 74453 (or 74450 counting only the distinct ones).
The product of its digits is 4608, while the sum is 27.
Adding to 221423324121 its reverse (121423324122), we get a palindrome (342846648243).
Subtracting from 221423324121 its reverse (121423324122), we obtain a palindrome (99999999999).
The spelling of 221423324121 in words is "two hundred twenty-one billion, four hundred twenty-three million, three hundred twenty-four thousand, one hundred twenty-one".
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