111220110112011 has 32 divisors (see below), whose sum is σ = 155600315323200. Its totient is φ = 70573099322880.

The previous prime is 111220110111991. The next prime is 111220110112057. The reversal of 111220110112011 is 110211011022111.

It is not a de Polignac number, because 111220110112011 - 2¹⁰ = 111220110110987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111220110112211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27899280 + ... + 31635581.

It is an arithmetic number, because the mean of its divisors is an integer number (4862509853850).

Almost surely, 2^{111220110112011} is an apocalyptic number.

111220110112011 is a deficient number, since it is larger than the sum of its proper divisors (44380205211189).

111220110112011 is a wasteful number, since it uses less digits than its factorization.

111220110112011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59535199.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111220110112011 its reverse (110211011022111), we get a palindrome (221431121134122).

The spelling of 111220110112011 in words is "one hundred eleven trillion, two hundred twenty billion, one hundred ten million, one hundred twelve thousand, eleven".