111100221211011 has 32 divisors (see below), whose sum is σ = 157931476641792. Its totient is φ = 69361796724480.

The previous prime is 111100221210947. The next prime is 111100221211019. The reversal of 111100221211011 is 110112122001111.

It is not a de Polignac number, because 111100221211011 - 2⁶ = 111100221210947 is a prime.

It is a super-2 number, since 2×111100221211011² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111100221211019) 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, 154024525 + ... + 154744158.

It is an arithmetic number, because the mean of its divisors is an integer number (4935358645056).

Almost surely, 2^{111100221211011} is an apocalyptic number.

111100221211011 is a deficient number, since it is larger than the sum of its proper divisors (46831255430781).

111100221211011 is a wasteful number, since it uses less digits than its factorization.

111100221211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308768843.

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

Adding to 111100221211011 its reverse (110112122001111), we get a palindrome (221212343212122).

The spelling of 111100221211011 in words is "one hundred eleven trillion, one hundred billion, two hundred twenty-one million, two hundred eleven thousand, eleven".