1311033313222 has 4 divisors (see below), whose sum is σ = 1966549969836. Its totient is φ = 655516656610.

The previous prime is 1311033313189. The next prime is 1311033313229. The reversal of 1311033313222 is 2223133301131.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311033313229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327758328304 + ... + 327758328307.

It is an arithmetic number, because the mean of its divisors is an integer number (491637492459).

Almost surely, 2^{1311033313222} is an apocalyptic number.

1311033313222 is a deficient number, since it is larger than the sum of its proper divisors (655516656614).

1311033313222 is an equidigital number, since it uses as much as digits as its factorization.

1311033313222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655516656613.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1311033313222 its reverse (2223133301131), we get a palindrome (3534166614353).

The spelling of 1311033313222 in words is "one trillion, three hundred eleven billion, thirty-three million, three hundred thirteen thousand, two hundred twenty-two".