111103120222021 has 8 divisors (see below), whose sum is σ = 111237761955320. Its totient is φ = 110968488775872.

The previous prime is 111103120221991. The next prime is 111103120222063. The reversal of 111103120222021 is 120222021301111.

It can be written as a sum of positive squares in 4 ways, for example, as 25216767856900 + 85886352365121 = 5021630^2 + 9267489^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111103120222021 - 2¹⁹ = 111103119697733 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 111103120222021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111103120225021) 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, 19152775 + ... + 24270043.

It is an arithmetic number, because the mean of its divisors is an integer number (13904720244415).

Almost surely, 2^{111103120222021} is an apocalyptic number.

It is an amenable number.

111103120222021 is a deficient number, since it is larger than the sum of its proper divisors (134641733299).

111103120222021 is an equidigital number, since it uses as much as digits as its factorization.

111103120222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5143575.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 111103120222021 its reverse (120222021301111), we get a palindrome (231325141523132).

The spelling of 111103120222021 in words is "one hundred eleven trillion, one hundred three billion, one hundred twenty million, two hundred twenty-two thousand, twenty-one".