111001222100111 has 4 divisors (see below), whose sum is σ = 126858539542992. Its totient is φ = 95143904657232.

The previous prime is 111001222100059. The next prime is 111001222100147.

111001222100111 is nontrivially palindromic in base 10.

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 111001222100111 - 2¹⁸ = 111001221837967 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 (111001222130111) 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, 7928658721430 + ... + 7928658721443.

It is an arithmetic number, because the mean of its divisors is an integer number (31714634885748).

Almost surely, 2^{111001222100111} is an apocalyptic number.

111001222100111 is a deficient number, since it is larger than the sum of its proper divisors (15857317442881).

111001222100111 is an equidigital number, since it uses as much as digits as its factorization.

111001222100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15857317442880.

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

The spelling of 111001222100111 in words is "one hundred eleven trillion, one billion, two hundred twenty-two million, one hundred thousand, one hundred eleven".