111020221100111 has 16 divisors (see below), whose sum is σ = 117683454947040. Its totient is φ = 104371777704960.

The previous prime is 111020221100081. The next prime is 111020221100171. The reversal of 111020221100111 is 111001122020111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111020221100111 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 (111020221100171) 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, 65752331 + ... + 67419651.

It is an arithmetic number, because the mean of its divisors is an integer number (7355215934190).

Almost surely, 2^{111020221100111} is an apocalyptic number.

111020221100111 is a deficient number, since it is larger than the sum of its proper divisors (6663233846929).

111020221100111 is a wasteful number, since it uses less digits than its factorization.

111020221100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671754.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111020221100111 its reverse (111001122020111), we get a palindrome (222021343120222).

The spelling of 111020221100111 in words is "one hundred eleven trillion, twenty billion, two hundred twenty-one million, one hundred thousand, one hundred eleven".