111220322011321 has 4 divisors (see below), whose sum is σ = 111220656771700. Its totient is φ = 111219987250944.

The previous prime is 111220322011273. The next prime is 111220322011327. The reversal of 111220322011321 is 123110223022111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9219694596025 + 102000627415296 = 3036395^2 + 10099536^2 .

It is a cyclic number.

It is not a de Polignac number, because 111220322011321 - 2²⁵ = 111220288456889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111220322011292 and 111220322011301.

It is not an unprimeable number, because it can be changed into a prime (111220322011327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166881336 + ... + 167546473.

It is an arithmetic number, because the mean of its divisors is an integer number (27805164192925).

Almost surely, 2^{111220322011321} is an apocalyptic number.

It is an amenable number.

111220322011321 is a deficient number, since it is larger than the sum of its proper divisors (334760379).

111220322011321 is an equidigital number, since it uses as much as digits as its factorization.

111220322011321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334760378.

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

Adding to 111220322011321 its reverse (123110223022111), we get a palindrome (234330545033432).

The spelling of 111220322011321 in words is "one hundred eleven trillion, two hundred twenty billion, three hundred twenty-two million, eleven thousand, three hundred twenty-one".