12120017 has 8 divisors (see below), whose sum is σ = 14917056. Its totient is φ = 9589392.

The previous prime is 12120001. The next prime is 12120019. The reversal of 12120017 is 71002121.

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 12120017 - 2⁴ = 12120001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12119983 and 12120010.

It is not an unprimeable number, because it can be changed into a prime (12120019) 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, 66503 + ... + 66684.

It is an arithmetic number, because the mean of its divisors is an integer number (1864632).

Almost surely, 2^12120017 is an apocalyptic number.

It is an amenable number.

12120017 is a deficient number, since it is larger than the sum of its proper divisors (2797039).

12120017 is a wasteful number, since it uses less digits than its factorization.

12120017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133207.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 12120017 is about 3481.3814786662. The cubic root of 12120017 is about 229.7035689654.

Adding to 12120017 its reverse (71002121), we get a palindrome (83122138).

The spelling of 12120017 in words is "twelve million, one hundred twenty thousand, seventeen".