Base | Representation |
---|---|
bin | 1000010001100110… |
… | …0101110110000001 |
3 | 12201210202210021220 |
4 | 2010121211312001 |
5 | 14022123113441 |
6 | 1004230105253 |
7 | 106021514364 |
oct | 20431456601 |
9 | 5653683256 |
10 | 2221301121 |
11 | a3a959456 |
12 | 51baab229 |
13 | 29527c080 |
14 | 1710240db |
15 | d0028466 |
hex | 84665d81 |
2221301121 has 8 divisors (see below), whose sum is σ = 3189560640. Its totient is φ = 1366954512.
The previous prime is 2221301119. The next prime is 2221301123. The reversal of 2221301121 is 1211031222.
It is an interprime number because it is at equal distance from previous prime (2221301119) and next prime (2221301123).
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2221301121 - 21 = 2221301119 is a prime.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 2221301121.
It is not an unprimeable number, because it can be changed into a prime (2221301123) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 28478181 + ... + 28478258.
It is an arithmetic number, because the mean of its divisors is an integer number (398695080).
Almost surely, 22221301121 is an apocalyptic number.
It is an amenable number.
2221301121 is a deficient number, since it is larger than the sum of its proper divisors (968259519).
2221301121 is a wasteful number, since it uses less digits than its factorization.
2221301121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 56956455.
The product of its (nonzero) digits is 48, while the sum is 15.
The square root of 2221301121 is about 47130.6813127075. The cubic root of 2221301121 is about 1304.7755560043.
Adding to 2221301121 its reverse (1211031222), we get a palindrome (3432332343).
The spelling of 2221301121 in words is "two billion, two hundred twenty-one million, three hundred one thousand, one hundred twenty-one".
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