1311330222 has 20 divisors (see below), whose sum is σ = 2938351416. Its totient is φ = 437110020.

The previous prime is 1311330217. The next prime is 1311330263. The reversal of 1311330222 is 2220331131.

1311330222 is a `hidden beast` number, since 1 + 311 + 330 + 2 + 22 = 666.

It is a super-2 number, since 2×1311330222² = 3439173902261138568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1311330195 and 1311330204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4047154 + ... + 4047477.

Almost surely, 2^1311330222 is an apocalyptic number.

1311330222 is an abundant number, since it is smaller than the sum of its proper divisors (1627021194).

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

1311330222 is an equidigital number, since it uses as much as digits as its factorization.

1311330222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8094645 (or 8094636 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1311330222 is about 36212.2937964443. The cubic root of 1311330222 is about 1094.5544143124.

Adding to 1311330222 its reverse (2220331131), we get a palindrome (3531661353).

Subtracting 1311330222 from its reverse (2220331131), we obtain a palindrome (909000909).

The spelling of 1311330222 in words is "one billion, three hundred eleven million, three hundred thirty thousand, two hundred twenty-two".