12120178 has 16 divisors (see below), whose sum is σ = 20850624. Its totient is φ = 5176080.

The previous prime is 12120091. The next prime is 12120179. The reversal of 12120178 is 87102121.

12120178 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12120179) 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, 3073 + ... + 5803.

It is an arithmetic number, because the mean of its divisors is an integer number (1303164).

Almost surely, 2^12120178 is an apocalyptic number.

12120178 is a deficient number, since it is larger than the sum of its proper divisors (8730446).

12120178 is a wasteful number, since it uses less digits than its factorization.

12120178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3057.

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 12120178 is about 3481.4046015940. The cubic root of 12120178 is about 229.7045860737.

Adding to 12120178 its reverse (87102121), we get a palindrome (99222299).

The spelling of 12120178 in words is "twelve million, one hundred twenty thousand, one hundred seventy-eight".