12662120 has 32 divisors (see below), whose sum is σ = 28857600. Its totient is φ = 4999488.

The previous prime is 12662087. The next prime is 12662123. The reversal of 12662120 is 2126621.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 12662092 and 12662101.

It is not an unprimeable number, because it can be changed into a prime (12662123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1157 + ... + 5163.

It is an arithmetic number, because the mean of its divisors is an integer number (901800).

Almost surely, 2^12662120 is an apocalyptic number.

12662120 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 12662120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14428800).

12662120 is an abundant number, since it is smaller than the sum of its proper divisors (16195480).

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

12662120 is a wasteful number, since it uses less digits than its factorization.

12662120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4097 (or 4093 counting only the distinct ones).

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

The square root of 12662120 is about 3558.3872751571. The cubic root of 12662120 is about 233.0784609306.

Adding to 12662120 its reverse (2126621), we get a palindrome (14788741).

The spelling of 12662120 in words is "twelve million, six hundred sixty-two thousand, one hundred twenty".