12120258 has 8 divisors (see below), whose sum is σ = 24240528. Its totient is φ = 4040084.

The previous prime is 12120257. The next prime is 12120293. The reversal of 12120258 is 85202121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

12120258 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (12120257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010016 + ... + 1010027.

It is an arithmetic number, because the mean of its divisors is an integer number (3030066).

Almost surely, 2^12120258 is an apocalyptic number.

12120258 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12120258 is a wasteful number, since it uses less digits than its factorization.

12120258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020048.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 12120258 is about 3481.4160911905. The cubic root of 12120258 is about 229.7050914658.

Adding to 12120258 its reverse (85202121), we get a palindrome (97322379).

The spelling of 12120258 in words is "twelve million, one hundred twenty thousand, two hundred fifty-eight".