1220224604 has 12 divisors (see below), whose sum is σ = 2204276928. Its totient is φ = 590431200.

The previous prime is 1220224597. The next prime is 1220224609. The reversal of 1220224604 is 4064220221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220224604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220224609) 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, 4920137 + ... + 4920384.

It is an arithmetic number, because the mean of its divisors is an integer number (183689744).

Almost surely, 2^1220224604 is an apocalyptic number.

It is an amenable number.

1220224604 is a deficient number, since it is larger than the sum of its proper divisors (984052324).

1220224604 is a wasteful number, since it uses less digits than its factorization.

1220224604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9840556 (or 9840554 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1220224604 is about 34931.7134420858. The cubic root of 1220224604 is about 1068.5952988169.

Adding to 1220224604 its reverse (4064220221), we get a palindrome (5284444825).

The spelling of 1220224604 in words is "one billion, two hundred twenty million, two hundred twenty-four thousand, six hundred four".