111002002122111 has 4 divisors (see below), whose sum is σ = 148002669496152. Its totient is φ = 74001334748072.

The previous prime is 111002002122091. The next prime is 111002002122181. The reversal of 111002002122111 is 111221200200111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111002002122111 - 2²⁷ = 111001867904383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111002002122181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18500333687016 + ... + 18500333687021.

It is an arithmetic number, because the mean of its divisors is an integer number (37000667374038).

Almost surely, 2^{111002002122111} is an apocalyptic number.

111002002122111 is a deficient number, since it is larger than the sum of its proper divisors (37000667374041).

111002002122111 is an equidigital number, since it uses as much as digits as its factorization.

111002002122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37000667374040.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111002002122111 its reverse (111221200200111), we get a palindrome (222223202322222).

The spelling of 111002002122111 in words is "one hundred eleven trillion, two billion, two million, one hundred twenty-two thousand, one hundred eleven".