1312221120332 has 12 divisors (see below), whose sum is σ = 2296482104280. Its totient is φ = 656083376256.

The previous prime is 1312221120311. The next prime is 1312221120349. The reversal of 1312221120332 is 2330211222131.

It is a junction number, because it is equal to n+sod(n) for n = 1312221120298 and 1312221120307.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6687173 + ... + 6880604.

It is an arithmetic number, because the mean of its divisors is an integer number (191373508690).

Almost surely, 2^{1312221120332} is an apocalyptic number.

It is an amenable number.

1312221120332 is a deficient number, since it is larger than the sum of its proper divisors (984260983948).

1312221120332 is a wasteful number, since it uses less digits than its factorization.

1312221120332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13591960 (or 13591958 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1312221120332 its reverse (2330211222131), we get a palindrome (3642432342463).

The spelling of 1312221120332 in words is "one trillion, three hundred twelve billion, two hundred twenty-one million, one hundred twenty thousand, three hundred thirty-two".