12122660 has 24 divisors (see below), whose sum is σ = 27772416. Its totient is φ = 4408160.

The previous prime is 12122659. The next prime is 12122723. The reversal of 12122660 is 6622121.

It is a happy number.

12122660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27332 + ... + 27771.

It is an arithmetic number, because the mean of its divisors is an integer number (1157184).

Almost surely, 2^12122660 is an apocalyptic number.

12122660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122660 is an abundant number, since it is smaller than the sum of its proper divisors (15649756).

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

12122660 is a wasteful number, since it uses less digits than its factorization.

12122660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55123 (or 55121 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 12122660 is about 3481.7610486649. The cubic root of 12122660 is about 229.7202648278.

Adding to 12122660 its reverse (6622121), we get a palindrome (18744781).

The spelling of 12122660 in words is "twelve million, one hundred twenty-two thousand, six hundred sixty".