220112011200021 has 4 divisors (see below), whose sum is σ = 293482681600032. Its totient is φ = 146741340800012.

The previous prime is 220112011199947. The next prime is 220112011200113. The reversal of 220112011200021 is 120002110211022.

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 220112011200021 - 2¹⁰ = 220112011198997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220112011220021) 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, 36685335200001 + ... + 36685335200006.

It is an arithmetic number, because the mean of its divisors is an integer number (73370670400008).

Almost surely, 2^{220112011200021} is an apocalyptic number.

It is an amenable number.

220112011200021 is a deficient number, since it is larger than the sum of its proper divisors (73370670400011).

220112011200021 is an equidigital number, since it uses as much as digits as its factorization.

220112011200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73370670400010.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 220112011200021 its reverse (120002110211022), we get a palindrome (340114121411043).

The spelling of 220112011200021 in words is "two hundred twenty trillion, one hundred twelve billion, eleven million, two hundred thousand, twenty-one".