112111112220121 has 4 divisors (see below), whose sum is σ = 128126985394432. Its totient is φ = 96095239045812.

The previous prime is 112111112220073. The next prime is 112111112220161. The reversal of 112111112220121 is 121022211111211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 112111112220121 - 2¹¹ = 112111112218073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112111112220161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8007936587145 + ... + 8007936587158.

It is an arithmetic number, because the mean of its divisors is an integer number (32031746348608).

Almost surely, 2^{112111112220121} is an apocalyptic number.

It is an amenable number.

112111112220121 is a deficient number, since it is larger than the sum of its proper divisors (16015873174311).

112111112220121 is an equidigital number, since it uses as much as digits as its factorization.

112111112220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16015873174310.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 112111112220121 its reverse (121022211111211), we get a palindrome (233133323331332).

The spelling of 112111112220121 in words is "one hundred twelve trillion, one hundred eleven billion, one hundred twelve million, two hundred twenty thousand, one hundred twenty-one".