12220604 has 12 divisors (see below), whose sum is σ = 23330328. Its totient is φ = 5554800.

The previous prime is 12220601. The next prime is 12220609. The reversal of 12220604 is 40602221.

It is a super-3 number, since 3×12220604³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138827 + ... + 138914.

It is an arithmetic number, because the mean of its divisors is an integer number (1944194).

Almost surely, 2^12220604 is an apocalyptic number.

It is an amenable number.

12220604 is a deficient number, since it is larger than the sum of its proper divisors (11109724).

12220604 is a wasteful number, since it uses less digits than its factorization.

12220604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277756 (or 277754 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 12220604 is about 3495.7980490869. The cubic root of 12220604 is about 230.3372745513.

Adding to 12220604 its reverse (40602221), we get a palindrome (52822825).

The spelling of 12220604 in words is "twelve million, two hundred twenty thousand, six hundred four".