12120004 has 18 divisors (see below), whose sum is σ = 22968330. Its totient is φ = 5593536.

The previous prime is 12120001. The next prime is 12120019. The reversal of 12120004 is 40002121.

It can be written as a sum of positive squares in 3 ways, for example, as 9604 + 12110400 = 98^2 + 3480^2 .

It is not an unprimeable number, because it can be changed into a prime (12120001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8289 + ... + 9640.

Almost surely, 2^12120004 is an apocalyptic number.

It is an amenable number.

12120004 is a deficient number, since it is larger than the sum of its proper divisors (10848326).

12120004 is a wasteful number, since it uses less digits than its factorization.

12120004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17959 (or 17944 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 12120004 is about 3481.3796115908. The cubic root of 12120004 is about 229.7034868383.

Adding to 12120004 its reverse (40002121), we get a palindrome (52122125).

The spelling of 12120004 in words is "twelve million, one hundred twenty thousand, four".