Base | Representation |
---|---|
bin | 1110010101001… |
… | …11000110110011 |
3 | 22101012220202112 |
4 | 13022213012303 |
5 | 221234102011 |
6 | 15532435535 |
7 | 2656604561 |
oct | 712470663 |
9 | 271186675 |
10 | 120222131 |
11 | 61953737 |
12 | 34318bab |
13 | 1bba4073 |
14 | 11d76a31 |
15 | a84b58b |
hex | 72a71b3 |
120222131 has 4 divisors (see below), whose sum is σ = 120942192. Its totient is φ = 119502072.
The previous prime is 120222119. The next prime is 120222133. The reversal of 120222131 is 131222021.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131222021 = 7 ⋅18746003.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-120222131 is a prime.
It is a super-2 number, since 2×1202221312 = 28906721564362322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (120222133) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359780 + ... + 360113.
It is an arithmetic number, because the mean of its divisors is an integer number (30235548).
Almost surely, 2120222131 is an apocalyptic number.
120222131 is a deficient number, since it is larger than the sum of its proper divisors (720061).
120222131 is an equidigital number, since it uses as much as digits as its factorization.
120222131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 720060.
The product of its (nonzero) digits is 48, while the sum is 14.
The square root of 120222131 is about 10964.5853090758. The cubic root of 120222131 is about 493.5465729097.
Adding to 120222131 its reverse (131222021), we get a palindrome (251444152).
The spelling of 120222131 in words is "one hundred twenty million, two hundred twenty-two thousand, one hundred thirty-one".
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