Base | Representation |
---|---|
bin | 1110010101001… |
… | …11000110101001 |
3 | 22101012220202011 |
4 | 13022213012221 |
5 | 221234101441 |
6 | 15532435521 |
7 | 2656604545 |
oct | 712470651 |
9 | 271186664 |
10 | 120222121 |
11 | 61953728 |
12 | 34318ba1 |
13 | 1bba4066 |
14 | 11d76a25 |
15 | a84b581 |
hex | 72a71a9 |
120222121 has 8 divisors (see below), whose sum is σ = 122165120. Its totient is φ = 118289808.
The previous prime is 120222119. The next prime is 120222133. The reversal of 120222121 is 121222021.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 120222121 - 21 = 120222119 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (120222161) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21775 + ... + 26731.
It is an arithmetic number, because the mean of its divisors is an integer number (15270640).
Almost surely, 2120222121 is an apocalyptic number.
It is an amenable number.
120222121 is a deficient number, since it is larger than the sum of its proper divisors (1942999).
120222121 is an equidigital number, since it uses as much as digits as its factorization.
120222121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5343.
The product of its (nonzero) digits is 32, while the sum is 13.
The square root of 120222121 is about 10964.5848530622. The cubic root of 120222121 is about 493.5465592254.
Adding to 120222121 its reverse (121222021), we get a palindrome (241444142).
The spelling of 120222121 in words is "one hundred twenty million, two hundred twenty-two thousand, one hundred twenty-one".
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