111220022321 has 16 divisors (see below), whose sum is σ = 114303693504. Its totient is φ = 108159758784.

The previous prime is 111220022297. The next prime is 111220022341. The reversal of 111220022321 is 123220022111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111220022321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111220022321.

It is not an unprimeable number, because it can be changed into a prime (111220022341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13368455 + ... + 13376771.

It is an arithmetic number, because the mean of its divisors is an integer number (7143980844).

Almost surely, 2^111220022321 is an apocalyptic number.

It is an amenable number.

111220022321 is a deficient number, since it is larger than the sum of its proper divisors (3083671183).

111220022321 is a wasteful number, since it uses less digits than its factorization.

111220022321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9680.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 111220022321 its reverse (123220022111), we get a palindrome (234440044432).

The spelling of 111220022321 in words is "one hundred eleven billion, two hundred twenty million, twenty-two thousand, three hundred twenty-one".