1313222224 has 20 divisors (see below), whose sum is σ = 2545390036. Its totient is φ = 656347392.

The previous prime is 1313222149. The next prime is 1313222233. The reversal of 1313222224 is 4222223131.

It can be written as a sum of positive squares in 2 ways, for example, as 1279349824 + 33872400 = 35768^2 + 5820^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1313222195 and 1313222204.

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 3 ways as a sum of consecutive naturals, for example, 28282 + ... + 58534.

Almost surely, 2^1313222224 is an apocalyptic number.

It is an amenable number.

1313222224 is a deficient number, since it is larger than the sum of its proper divisors (1232167812).

1313222224 is a wasteful number, since it uses less digits than its factorization.

1313222224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32974 (or 32968 counting only the distinct ones).

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

The square root of 1313222224 is about 36238.4081328085. The cubic root of 1313222224 is about 1095.0805731527.

Adding to 1313222224 its reverse (4222223131), we get a palindrome (5535445355).

The spelling of 1313222224 in words is "one billion, three hundred thirteen million, two hundred twenty-two thousand, two hundred twenty-four".