12200660 has 48 divisors (see below), whose sum is σ = 27330240. Its totient is φ = 4561920.

The previous prime is 12200651. The next prime is 12200687. The reversal of 12200660 is 6600221.

12200660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12200660² = 297712208871200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36695 + ... + 37025.

It is an arithmetic number, because the mean of its divisors is an integer number (569380).

Almost surely, 2^12200660 is an apocalyptic number.

12200660 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 12200660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13665120).

12200660 is an abundant number, since it is smaller than the sum of its proper divisors (15129580).

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

12200660 is a wasteful number, since it uses less digits than its factorization.

12200660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 12200660 is about 3492.9443167620. The cubic root of 12200660 is about 230.2119030088.

Adding to 12200660 its reverse (6600221), we get a palindrome (18800881).

The spelling of 12200660 in words is "twelve million, two hundred thousand, six hundred sixty".