1312321202122 has 16 divisors (see below), whose sum is σ = 2250942668352. Its totient is φ = 562111077600.

The previous prime is 1312321202099. The next prime is 1312321202167. The reversal of 1312321202122 is 2212021232131.

It is a junction number, because it is equal to n+sod(n) for n = 1312321202093 and 1312321202102.

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 7 ways as a sum of consecutive naturals, for example, 25998448 + ... + 26048875.

It is an arithmetic number, because the mean of its divisors is an integer number (140683916772).

Almost surely, 2^{1312321202122} is an apocalyptic number.

1312321202122 is a deficient number, since it is larger than the sum of its proper divisors (938621466230).

1312321202122 is a wasteful number, since it uses less digits than its factorization.

1312321202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52049133.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1312321202122 its reverse (2212021232131), we get a palindrome (3524342434253).

The spelling of 1312321202122 in words is "one trillion, three hundred twelve billion, three hundred twenty-one million, two hundred two thousand, one hundred twenty-two".