112112212021 has 4 divisors (see below), whose sum is σ = 112994985472. Its totient is φ = 111229438572.

The previous prime is 112112212007. The next prime is 112112212033. The reversal of 112112212021 is 120212211211.

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 112112212021 - 2¹³ = 112112203829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112112211986 and 112112212004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112112212061) 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, 441386535 + ... + 441386788.

It is an arithmetic number, because the mean of its divisors is an integer number (28248746368).

Almost surely, 2^112112212021 is an apocalyptic number.

It is an amenable number.

112112212021 is a deficient number, since it is larger than the sum of its proper divisors (882773451).

112112212021 is an equidigital number, since it uses as much as digits as its factorization.

112112212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882773450.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 112112212021 its reverse (120212211211), we get a palindrome (232324423232).

The spelling of 112112212021 in words is "one hundred twelve billion, one hundred twelve million, two hundred twelve thousand, twenty-one".