111100221020012 has 72 divisors (see below), whose sum is σ = 226324587315456. Its totient is φ = 47581485733152.

The previous prime is 111100221020011. The next prime is 111100221020039. The reversal of 111100221020012 is 210020122001111.

It is a super-2 number, since 2×111100221020012² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (111100221020011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5708268593 + ... + 5708288055.

It is an arithmetic number, because the mean of its divisors is an integer number (3143397046048).

Almost surely, 2^{111100221020012} is an apocalyptic number.

It is an amenable number.

111100221020012 is an abundant number, since it is smaller than the sum of its proper divisors (115224366295444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111100221020012 is a wasteful number, since it uses less digits than its factorization.

111100221020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38107 (or 38098 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111100221020012 its reverse (210020122001111), we get a palindrome (321120343021123).

The spelling of 111100221020012 in words is "one hundred eleven trillion, one hundred billion, two hundred twenty-one million, twenty thousand, twelve".