112021110021 has 4 divisors (see below), whose sum is σ = 149361480032. Its totient is φ = 74680740012.

The previous prime is 112021109971. The next prime is 112021110029. The reversal of 112021110021 is 120011120211.

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 not a de Polignac number, because 112021110021 - 2¹⁴ = 112021093637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112021109979 and 112021110006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112021110029) 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 3 ways as a sum of consecutive naturals, for example, 18670185001 + ... + 18670185006.

It is an arithmetic number, because the mean of its divisors is an integer number (37340370008).

Almost surely, 2^112021110021 is an apocalyptic number.

It is an amenable number.

112021110021 is a deficient number, since it is larger than the sum of its proper divisors (37340370011).

112021110021 is an equidigital number, since it uses as much as digits as its factorization.

112021110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37340370010.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 112021110021 its reverse (120011120211), we get a palindrome (232032230232).

The spelling of 112021110021 in words is "one hundred twelve billion, twenty-one million, one hundred ten thousand, twenty-one".