111001110021111 has 8 divisors (see below), whose sum is σ = 148647774701680. Its totient is φ = 73677592677312.

The previous prime is 111001110021077. The next prime is 111001110021149. The reversal of 111001110021111 is 111120011100111.

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

It is not a de Polignac number, because 111001110021111 - 2⁶ = 111001110021047 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 (111001110021811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80786833390 + ... + 80786834763.

It is an arithmetic number, because the mean of its divisors is an integer number (18580971837710).

Almost surely, 2^{111001110021111} is an apocalyptic number.

111001110021111 is a deficient number, since it is larger than the sum of its proper divisors (37646664680569).

111001110021111 is a wasteful number, since it uses less digits than its factorization.

111001110021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161573668385.

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 111001110021111 its reverse (111120011100111), we get a palindrome (222121121121222).

The spelling of 111001110021111 in words is "one hundred eleven trillion, one billion, one hundred ten million, twenty-one thousand, one hundred eleven".