112112211021 has 4 divisors (see below), whose sum is σ = 149482948032. Its totient is φ = 74741474012.

The previous prime is 112112211007. The next prime is 112112211037. The reversal of 112112211021 is 120112211211.

It is a happy number.

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 112112211021 - 2⁵ = 112112210989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112112211221) 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, 18685368501 + ... + 18685368506.

It is an arithmetic number, because the mean of its divisors is an integer number (37370737008).

Almost surely, 2^112112211021 is an apocalyptic number.

It is an amenable number.

112112211021 is a deficient number, since it is larger than the sum of its proper divisors (37370737011).

112112211021 is an equidigital number, since it uses as much as digits as its factorization.

112112211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37370737010.

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

Adding to 112112211021 its reverse (120112211211), we get a palindrome (232224422232).

The spelling of 112112211021 in words is "one hundred twelve billion, one hundred twelve million, two hundred eleven thousand, twenty-one".