121304224 has 12 divisors (see below), whose sum is σ = 238817754. Its totient is φ = 60652096.

The previous prime is 121304219. The next prime is 121304269. The reversal of 121304224 is 422403121.

It can be written as a sum of positive squares in only one way, i.e., 119508624 + 1795600 = 10932^2 + 1340^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1895347 + ... + 1895410.

Almost surely, 2^121304224 is an apocalyptic number.

It is an amenable number.

121304224 is a deficient number, since it is larger than the sum of its proper divisors (117513530).

121304224 is an equidigital number, since it uses as much as digits as its factorization.

121304224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3790767 (or 3790759 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 121304224 is about 11013.8196825624. The cubic root of 121304224 is about 495.0229204093.

Adding to 121304224 its reverse (422403121), we get a palindrome (543707345).

The spelling of 121304224 in words is "one hundred twenty-one million, three hundred four thousand, two hundred twenty-four".