111100201110221 has 4 divisors (see below), whose sum is σ = 111100275780000. Its totient is φ = 111100126440444.

The previous prime is 111100201110191. The next prime is 111100201110247. The reversal of 111100201110221 is 122011102001111.

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 a de Polignac number, because none of the positive numbers 2^k-111100201110221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111100201110196 and 111100201110205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100201110251) 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, 35056721 + ... + 38094278.

It is an arithmetic number, because the mean of its divisors is an integer number (27775068945000).

Almost surely, 2^{111100201110221} is an apocalyptic number.

It is an amenable number.

111100201110221 is a deficient number, since it is larger than the sum of its proper divisors (74669779).

111100201110221 is an equidigital number, since it uses as much as digits as its factorization.

111100201110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74669778.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111100201110221 its reverse (122011102001111), we get a palindrome (233111303111332).

The spelling of 111100201110221 in words is "one hundred eleven trillion, one hundred billion, two hundred one million, one hundred ten thousand, two hundred twenty-one".