111441220111 has 8 divisors (see below), whose sum is σ = 120315928544. Its totient is φ = 102609698400.

The previous prime is 111441220109. The next prime is 111441220127. The reversal of 111441220111 is 111022144111.

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 111441220111 - 2¹ = 111441220109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111441220411) 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, 10791315 + ... + 10801636.

It is an arithmetic number, because the mean of its divisors is an integer number (15039491068).

Almost surely, 2^111441220111 is an apocalyptic number.

111441220111 is a deficient number, since it is larger than the sum of its proper divisors (8874708433).

111441220111 is a wasteful number, since it uses less digits than its factorization.

111441220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21593361.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111441220111 its reverse (111022144111), we get a palindrome (222463364222).

The spelling of 111441220111 in words is "one hundred eleven billion, four hundred forty-one million, two hundred twenty thousand, one hundred eleven".