112011221210021 has 4 divisors (see below), whose sum is σ = 128012824240032. Its totient is φ = 96009618180012.

The previous prime is 112011221209949. The next prime is 112011221210027. The reversal of 112011221210021 is 120012122110211.

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 112011221210021 - 2⁴⁶ = 41642477032357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112011221210027) 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, 8000801514995 + ... + 8000801515008.

It is an arithmetic number, because the mean of its divisors is an integer number (32003206060008).

Almost surely, 2^{112011221210021} is an apocalyptic number.

It is an amenable number.

112011221210021 is a deficient number, since it is larger than the sum of its proper divisors (16001603030011).

112011221210021 is an equidigital number, since it uses as much as digits as its factorization.

112011221210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16001603030010.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 112011221210021 its reverse (120012122110211), we get a palindrome (232023343320232).

The spelling of 112011221210021 in words is "one hundred twelve trillion, eleven billion, two hundred twenty-one million, two hundred ten thousand, twenty-one".