1312132221322 has 32 divisors (see below), whose sum is σ = 2224539531648. Its totient is φ = 575920652736.

The previous prime is 1312132221221. The next prime is 1312132221353. The reversal of 1312132221322 is 2231222312131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6238168 + ... + 6445075.

It is an arithmetic number, because the mean of its divisors is an integer number (69516860364).

Almost surely, 2^{1312132221322} is an apocalyptic number.

1312132221322 is a deficient number, since it is larger than the sum of its proper divisors (912407310326).

1312132221322 is a wasteful number, since it uses less digits than its factorization.

1312132221322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12683454.

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

Adding to 1312132221322 its reverse (2231222312131), we get a palindrome (3543354533453).

The spelling of 1312132221322 in words is "one trillion, three hundred twelve billion, one hundred thirty-two million, two hundred twenty-one thousand, three hundred twenty-two".