1222312031322 has 16 divisors (see below), whose sum is σ = 2510694983712. Its totient is φ = 396425523600.

The previous prime is 1222312031263. The next prime is 1222312031327. The reversal of 1222312031322 is 2231302132221.

It is a junction number, because it is equal to n+sod(n) for n = 1222312031292 and 1222312031301.

It is not an unprimeable number, because it can be changed into a prime (1222312031327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2752954804 + ... + 2752955247.

It is an arithmetic number, because the mean of its divisors is an integer number (156918436482).

Almost surely, 2^{1222312031322} is an apocalyptic number.

1222312031322 is an abundant number, since it is smaller than the sum of its proper divisors (1288382952390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222312031322 is a wasteful number, since it uses less digits than its factorization.

1222312031322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5505910093.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1222312031322 its reverse (2231302132221), we get a palindrome (3453614163543).

The spelling of 1222312031322 in words is "one trillion, two hundred twenty-two billion, three hundred twelve million, thirty-one thousand, three hundred twenty-two".