12102112 has 24 divisors (see below), whose sum is σ = 25992792. Its totient is φ = 5500800.

The previous prime is 12102091. The next prime is 12102127. The reversal of 12102112 is 21120121.

It is a super-2 number, since 2×12102112² = 292922229721088, which contains 22 as substring.

It is a congruent number.

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, 16839 + ... + 17542.

It is an arithmetic number, because the mean of its divisors is an integer number (1083033).

Almost surely, 2^12102112 is an apocalyptic number.

It is an amenable number.

12102112 is an abundant number, since it is smaller than the sum of its proper divisors (13890680).

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

12102112 is a wasteful number, since it uses less digits than its factorization.

12102112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34402 (or 34394 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 12102112 is about 3478.8089915947. The cubic root of 12102112 is about 229.5903988992.

Adding to 12102112 its reverse (21120121), we get a palindrome (33222233).

Subtracting 12102112 from its reverse (21120121), we obtain a square (9018009 = 3003²).

The spelling of 12102112 in words is "twelve million, one hundred two thousand, one hundred twelve".