1213324224 has 56 divisors (see below), whose sum is σ = 3668865408. Its totient is φ = 346663680.

The previous prime is 1213324213. The next prime is 1213324261. The reversal of 1213324224 is 4224233121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1213324194 and 1213324203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450042 + ... + 452729.

Almost surely, 2^1213324224 is an apocalyptic number.

1213324224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1213324224 is an abundant number, since it is smaller than the sum of its proper divisors (2455541184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213324224 is an equidigital number, since it uses as much as digits as its factorization.

1213324224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902793 (or 902783 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 1213324224 is about 34832.8038492453. The cubic root of 1213324224 is about 1066.5771848548.

Adding to 1213324224 its reverse (4224233121), we get a palindrome (5437557345).

The spelling of 1213324224 in words is "one billion, two hundred thirteen million, three hundred twenty-four thousand, two hundred twenty-four".