13222111021312 has 36 divisors (see below), whose sum is σ = 27006353965360. Its totient is φ = 6457310028288.

The previous prime is 13222111021193. The next prime is 13222111021321. The reversal of 13222111021312 is 21312011122231.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600557262 + ... + 600579277.

Almost surely, 2^{13222111021312} is an apocalyptic number.

It is an amenable number.

13222111021312 is an abundant number, since it is smaller than the sum of its proper divisors (13784242944048).

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

13222111021312 is an equidigital number, since it uses as much as digits as its factorization.

13222111021312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201136598 (or 1201136584 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 13222111021312 its reverse (21312011122231), we get a palindrome (34534122143543).

The spelling of 13222111021312 in words is "thirteen trillion, two hundred twenty-two billion, one hundred eleven million, twenty-one thousand, three hundred twelve".