112221011321 has 2 divisors, whose sum is σ = 112221011322. Its totient is φ = 112221011320.

The previous prime is 112221011297. The next prime is 112221011333. The reversal of 112221011321 is 123110122211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78210274921 + 34010736400 = 279661^2 + 184420^2 .

It is an emirp because it is prime and its reverse (123110122211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112221011321 - 2³⁴ = 95041142137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112221011321.

It is not a weakly prime, because it can be changed into another prime (112221013321) by changing a digit.

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 as a sum of consecutive naturals, namely, 56110505660 + 56110505661.

It is an arithmetic number, because the mean of its divisors is an integer number (56110505661).

Almost surely, 2^112221011321 is an apocalyptic number.

It is an amenable number.

112221011321 is a deficient number, since it is larger than the sum of its proper divisors (1).

112221011321 is an equidigital number, since it uses as much as digits as its factorization.

112221011321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 112221011321 its reverse (123110122211), we get a palindrome (235331133532).

The spelling of 112221011321 in words is "one hundred twelve billion, two hundred twenty-one million, eleven thousand, three hundred twenty-one".