111211002200021 has 8 divisors (see below), whose sum is σ = 111237948948480. Its totient is φ = 111184057501488.

The previous prime is 111211002199987. The next prime is 111211002200069. The reversal of 111211002200021 is 120002200112111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111211002200021 - 2³⁴ = 111193822330837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111211002199969 and 111211002200005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111211002200321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110926235 + ... + 111924311.

It is an arithmetic number, because the mean of its divisors is an integer number (13904743618560).

Almost surely, 2^{111211002200021} is an apocalyptic number.

It is an amenable number.

111211002200021 is a deficient number, since it is larger than the sum of its proper divisors (26946748459).

111211002200021 is an equidigital number, since it uses as much as digits as its factorization.

111211002200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024963.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111211002200021 its reverse (120002200112111), we get a palindrome (231213202312132).

The spelling of 111211002200021 in words is "one hundred eleven trillion, two hundred eleven billion, two million, two hundred thousand, twenty-one".