1224213304 has 8 divisors (see below), whose sum is σ = 2295399960. Its totient is φ = 612106648.

The previous prime is 1224213271. The next prime is 1224213307. The reversal of 1224213304 is 4033124221.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224213307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76513324 + ... + 76513339.

It is an arithmetic number, because the mean of its divisors is an integer number (286924995).

Almost surely, 2^1224213304 is an apocalyptic number.

It is an amenable number.

1224213304 is a deficient number, since it is larger than the sum of its proper divisors (1071186656).

1224213304 is a wasteful number, since it uses less digits than its factorization.

1224213304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153026669 (or 153026665 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1224213304 is about 34988.7596807889. The cubic root of 1224213304 is about 1069.7583825713.

Adding to 1224213304 its reverse (4033124221), we get a palindrome (5257337525).

The spelling of 1224213304 in words is "one billion, two hundred twenty-four million, two hundred thirteen thousand, three hundred four".