12102132 has 24 divisors (see below), whose sum is σ = 32272576. Its totient is φ = 3457728.

The previous prime is 12102127. The next prime is 12102133. The reversal of 12102132 is 23120121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102133) by changing a digit.

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, 71953 + ... + 72120.

Almost surely, 2^12102132 is an apocalyptic number.

12102132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12102132 is an abundant number, since it is smaller than the sum of its proper divisors (20170444).

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

12102132 is a wasteful number, since it uses less digits than its factorization.

12102132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144087 (or 144085 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 12102132 is about 3478.8118661405. The cubic root of 12102132 is about 229.5905253732.

Adding to 12102132 its reverse (23120121), we get a palindrome (35222253).

The spelling of 12102132 in words is "twelve million, one hundred two thousand, one hundred thirty-two".