Base | Representation |
---|---|
bin | 110111111110110111… |
… | …1001110100110100101 |
3 | 102111022102021100020202 |
4 | 1233331233032212211 |
5 | 3432203102230341 |
6 | 131121232040245 |
7 | 11454122525450 |
oct | 1577557164645 |
9 | 374272240222 |
10 | 120221133221 |
11 | 46a92771852 |
12 | 1b371993085 |
13 | b44bc60827 |
14 | 5b6686a497 |
15 | 31d95d679b |
hex | 1bfdbce9a5 |
120221133221 has 8 divisors (see below), whose sum is σ = 138384039360. Its totient is φ = 102305341728.
The previous prime is 120221133217. The next prime is 120221133269. The reversal of 120221133221 is 122331122021.
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 120221133221 - 22 = 120221133217 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 120221133193 and 120221133202.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120221133211) 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, 61777616 + ... + 61779561.
It is an arithmetic number, because the mean of its divisors is an integer number (17298004920).
Almost surely, 2120221133221 is an apocalyptic number.
It is an amenable number.
120221133221 is a deficient number, since it is larger than the sum of its proper divisors (18162906139).
120221133221 is a wasteful number, since it uses less digits than its factorization.
120221133221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 123557323.
The product of its (nonzero) digits is 288, while the sum is 20.
Adding to 120221133221 its reverse (122331122021), we get a palindrome (242552255242).
The spelling of 120221133221 in words is "one hundred twenty billion, two hundred twenty-one million, one hundred thirty-three thousand, two hundred twenty-one".
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