112111210221 has 24 divisors (see below), whose sum is σ = 153246679200. Its totient is φ = 72903481056.

The previous prime is 112111210213. The next prime is 112111210231. The reversal of 112111210221 is 122012111211.

It is a happy number.

It is not a de Polignac number, because 112111210221 - 2³ = 112111210213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112111210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112111210231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4185730 + ... + 4212428.

It is an arithmetic number, because the mean of its divisors is an integer number (6385278300).

Almost surely, 2^112111210221 is an apocalyptic number.

It is an amenable number.

112111210221 is a deficient number, since it is larger than the sum of its proper divisors (41135468979).

112111210221 is an equidigital number, since it uses as much as digits as its factorization.

112111210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27545 (or 27502 counting only the distinct ones).

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

Adding to 112111210221 its reverse (122012111211), we get a palindrome (234123321432).

The spelling of 112111210221 in words is "one hundred twelve billion, one hundred eleven million, two hundred ten thousand, two hundred twenty-one".