12118210 has 48 divisors (see below), whose sum is σ = 24523128. Its totient is φ = 4285440.

The previous prime is 12118207. The next prime is 12118237. The reversal of 12118210 is 1281121.

It can be written as a sum of positive squares in 4 ways, for example, as 7273809 + 4844401 = 2697^2 + 2201^2 .

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 124882 + ... + 124978.

Almost surely, 2^12118210 is an apocalyptic number.

12118210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12118210 is an abundant number, since it is smaller than the sum of its proper divisors (12404918).

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

12118210 is a wasteful number, since it uses less digits than its factorization.

12118210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 12118210 is about 3481.1219455802. The cubic root of 12118210 is about 229.6921527279.

Adding to 12118210 its reverse (1281121), we get a palindrome (13399331).

The spelling of 12118210 in words is "twelve million, one hundred eighteen thousand, two hundred ten".