12102102 has 16 divisors (see below), whose sum is σ = 26893680. Its totient is φ = 4034016.

The previous prime is 12102091. The next prime is 12102127. The reversal of 12102102 is 20120121.

It is a super-4 number, since 4×12102102⁴ (a number of 29 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112003 + ... + 112110.

It is an arithmetic number, because the mean of its divisors is an integer number (1680855).

Almost surely, 2^12102102 is an apocalyptic number.

12102102 is an abundant number, since it is smaller than the sum of its proper divisors (14791578).

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

12102102 is a wasteful number, since it uses less digits than its factorization.

12102102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224124 (or 224118 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 12102102 is about 3478.8075543209. The cubic root of 12102102 is about 229.5903356622.

Adding to 12102102 its reverse (20120121), we get a palindrome (32222223).

The spelling of 12102102 in words is "twelve million, one hundred two thousand, one hundred two".