12102660 has 72 divisors (see below), whose sum is σ = 37267776. Its totient is φ = 3178560.

The previous prime is 12102653. The next prime is 12102661. The reversal of 12102660 is 6620121.

It is a happy number.

12102660 is a `hidden beast` number, since 1 + 2 + 1 + 0 + 2 + 660 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12102661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12307 + ... + 13253.

It is an arithmetic number, because the mean of its divisors is an integer number (517608).

Almost surely, 2^12102660 is an apocalyptic number.

12102660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12102660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18633888).

12102660 is an abundant number, since it is smaller than the sum of its proper divisors (25165116).

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

12102660 is a wasteful number, since it uses less digits than its factorization.

12102660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033 (or 1028 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 12102660 is about 3478.8877532913. The cubic root of 12102660 is about 229.5938642349.

Adding to 12102660 its reverse (6620121), we get a palindrome (18722781).

The spelling of 12102660 in words is "twelve million, one hundred two thousand, six hundred sixty".