1313221322 has 8 divisors (see below), whose sum is σ = 2251236576. Its totient is φ = 562809132.

The previous prime is 1313221303. The next prime is 1313221337. The reversal of 1313221322 is 2231223131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1313221294 and 1313221303.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46900748 + ... + 46900775.

It is an arithmetic number, because the mean of its divisors is an integer number (281404572).

Almost surely, 2^1313221322 is an apocalyptic number.

1313221322 is a deficient number, since it is larger than the sum of its proper divisors (938015254).

1313221322 is an equidigital number, since it uses as much as digits as its factorization.

1313221322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93801532.

The product of its digits is 432, while the sum is 20.

The square root of 1313221322 is about 36238.3956874473. The cubic root of 1313221322 is about 1095.0803224302.

Adding to 1313221322 its reverse (2231223131), we get a palindrome (3544444453).

The spelling of 1313221322 in words is "one billion, three hundred thirteen million, two hundred twenty-one thousand, three hundred twenty-two".