1312123312222 has 8 divisors (see below), whose sum is σ = 1968209881200. Its totient is φ = 656053351824.

The previous prime is 1312123312217. The next prime is 1312123312271. The reversal of 1312123312222 is 2222133212131.

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

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 3 ways as a sum of consecutive naturals, for example, 3952722 + ... + 4271797.

It is an arithmetic number, because the mean of its divisors is an integer number (246026235150).

Almost surely, 2^{1312123312222} is an apocalyptic number.

1312123312222 is a deficient number, since it is larger than the sum of its proper divisors (656086568978).

1312123312222 is an equidigital number, since it uses as much as digits as its factorization.

1312123312222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8304290.

The product of its digits is 1728, while the sum is 25.

Adding to 1312123312222 its reverse (2222133212131), we get a palindrome (3534256524353).

The spelling of 1312123312222 in words is "one trillion, three hundred twelve billion, one hundred twenty-three million, three hundred twelve thousand, two hundred twenty-two".