1224223013 has 4 divisors (see below), whose sum is σ = 1318394028. Its totient is φ = 1130052000.

The previous prime is 1224222997. The next prime is 1224223019. The reversal of 1224223013 is 3103224221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3103224221 = 587 ⋅5286583.

It can be written as a sum of positive squares in 2 ways, for example, as 558944164 + 665278849 = 23642^2 + 25793^2 .

It is a cyclic number.

It is not a de Polignac number, because 1224223013 - 2⁴ = 1224222997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224223019) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 47085488 + ... + 47085513.

It is an arithmetic number, because the mean of its divisors is an integer number (329598507).

Almost surely, 2^1224223013 is an apocalyptic number.

1224223013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1224223013 is a deficient number, since it is larger than the sum of its proper divisors (94171015).

1224223013 is an equidigital number, since it uses as much as digits as its factorization.

1224223013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94171014.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1224223013 is about 34988.8984250719. The cubic root of 1224223013 is about 1069.7612105797.

Adding to 1224223013 its reverse (3103224221), we get a palindrome (4327447234).

The spelling of 1224223013 in words is "one billion, two hundred twenty-four million, two hundred twenty-three thousand, thirteen".