221112112000111 has 2 divisors, whose sum is σ = 221112112000112. Its totient is φ = 221112112000110.

The previous prime is 221112111999997. The next prime is 221112112000123. The reversal of 221112112000111 is 111000211211122.

221112112000111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221112112000111 - 2¹⁵ = 221112111967343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221112112000151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110556056000055 + 110556056000056.

It is an arithmetic number, because the mean of its divisors is an integer number (110556056000056).

Almost surely, 2^{221112112000111} is an apocalyptic number.

221112112000111 is a deficient number, since it is larger than the sum of its proper divisors (1).

221112112000111 is an equidigital number, since it uses as much as digits as its factorization.

221112112000111 is an evil number, because the sum of its binary digits is even.

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

Adding to 221112112000111 its reverse (111000211211122), we get a palindrome (332112323211233).

The spelling of 221112112000111 in words is "two hundred twenty-one trillion, one hundred twelve billion, one hundred twelve million, one hundred eleven", and thus it is an aban number.