112111000111221 has 32 divisors (see below), whose sum is σ = 154366952463360. Its totient is φ = 72321145841664.

The previous prime is 112111000111171. The next prime is 112111000111247. The reversal of 112111000111221 is 122111000111211.

It is not a de Polignac number, because 112111000111221 - 2²⁶ = 112110933002357 is a prime.

It is a super-2 number, since 2×112111000111221² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 112111000111221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112111000115221) 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, 11980261 + ... + 19176773.

It is an arithmetic number, because the mean of its divisors is an integer number (4823967264480).

Almost surely, 2^{112111000111221} is an apocalyptic number.

It is an amenable number.

112111000111221 is a deficient number, since it is larger than the sum of its proper divisors (42255952352139).

112111000111221 is a wasteful number, since it uses less digits than its factorization.

112111000111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7197325.

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

Adding to 112111000111221 its reverse (122111000111211), we get a palindrome (234222000222432).

The spelling of 112111000111221 in words is "one hundred twelve trillion, one hundred eleven billion, one hundred eleven thousand, two hundred twenty-one".