12222004 has 6 divisors (see below), whose sum is σ = 21388514. Its totient is φ = 6111000.

The previous prime is 12221981. The next prime is 12222013. The reversal of 12222004 is 40022221.

It can be written as a sum of positive squares in only one way, i.e., 9597604 + 2624400 = 3098^2 + 1620^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1527747 + ... + 1527754.

Almost surely, 2^12222004 is an apocalyptic number.

It is an amenable number.

12222004 is a deficient number, since it is larger than the sum of its proper divisors (9166510).

12222004 is a wasteful number, since it uses less digits than its factorization.

12222004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055505 (or 3055503 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 12222004 is about 3495.9982837524. The cubic root of 12222004 is about 230.3460700759.

Adding to 12222004 its reverse (40022221), we get a palindrome (52244225).

The spelling of 12222004 in words is "twelve million, two hundred twenty-two thousand, four".