12120842 has 12 divisors (see below), whose sum is σ = 18505266. Its totient is φ = 5954280.

The previous prime is 12120833. The next prime is 12120859. The reversal of 12120842 is 24802121.

It is a happy number.

12120842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12117361 + 3481 = 3481^2 + 59^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6092 + ... + 7832.

Almost surely, 2^12120842 is an apocalyptic number.

It is a pronic number, being equal to 3481×3482.

12120842 is a deficient number, since it is larger than the sum of its proper divisors (6384424).

12120842 is an equidigital number, since it uses as much as digits as its factorization.

12120842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861 (or 1802 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 12120842 is about 3481.4999640959. The cubic root of 12120842 is about 229.7087807608.

Adding to 12120842 its reverse (24802121), we get a palindrome (36922963).

The spelling of 12120842 in words is "twelve million, one hundred twenty thousand, eight hundred forty-two".