112111012221 has 16 divisors (see below), whose sum is σ = 162919436736. Its totient is φ = 68160168576.

The previous prime is 112111012193. The next prime is 112111012241. The reversal of 112111012221 is 122210111211.

It is a happy number.

It is not a de Polignac number, because 112111012221 - 2⁷ = 112111012093 is a prime.

It is a super-2 number, since 2×112111012221² (a number of 23 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 112111012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112111012241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17313880 + ... + 17320353.

It is an arithmetic number, because the mean of its divisors is an integer number (10182464796).

Almost surely, 2^112111012221 is an apocalyptic number.

It is an amenable number.

112111012221 is a deficient number, since it is larger than the sum of its proper divisors (50808424515).

112111012221 is a wasteful number, since it uses less digits than its factorization.

112111012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34634332.

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

Adding to 112111012221 its reverse (122210111211), we get a palindrome (234321123432).

The spelling of 112111012221 in words is "one hundred twelve billion, one hundred eleven million, twelve thousand, two hundred twenty-one".