112221011121 has 16 divisors (see below), whose sum is σ = 150826416000. Its totient is φ = 74217040128.

The previous prime is 112221011087. The next prime is 112221011141. The reversal of 112221011121 is 121110122211.

It is a happy number.

It is not a de Polignac number, because 112221011121 - 2¹⁴ = 112220994737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112221011121.

It is not an unprimeable number, because it can be changed into a prime (112221011141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77706 + ... + 480083.

It is an arithmetic number, because the mean of its divisors is an integer number (9426651000).

Almost surely, 2^112221011121 is an apocalyptic number.

It is an amenable number.

112221011121 is a deficient number, since it is larger than the sum of its proper divisors (38605404879).

112221011121 is a wasteful number, since it uses less digits than its factorization.

112221011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558328.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 112221011121 its reverse (121110122211), we get a palindrome (233331133332).

The spelling of 112221011121 in words is "one hundred twelve billion, two hundred twenty-one million, eleven thousand, one hundred twenty-one".