12102056 has 16 divisors (see below), whose sum is σ = 22789140. Its totient is φ = 6024960.

The previous prime is 12102043. The next prime is 12102067. The reversal of 12102056 is 65020121.

It can be written as a sum of positive squares in 2 ways, for example, as 9821956 + 2280100 = 3134^2 + 1510^2 .

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 3 ways as a sum of consecutive naturals, for example, 1211 + ... + 5066.

Almost surely, 2^12102056 is an apocalyptic number.

It is an amenable number.

12102056 is a deficient number, since it is larger than the sum of its proper divisors (10687084).

12102056 is a wasteful number, since it uses less digits than its factorization.

12102056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6524 (or 6520 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 12102056 is about 3478.8009428537. The cubic root of 12102056 is about 229.5900447714.

Adding to 12102056 its reverse (65020121), we get a palindrome (77122177).

The spelling of 12102056 in words is "twelve million, one hundred two thousand, fifty-six".