111210020012111 has 4 divisors (see below), whose sum is σ = 111428507281800. Its totient is φ = 110991532742424.

The previous prime is 111210020012101. The next prime is 111210020012141.

111210020012111 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 a de Polignac number, because none of the positive numbers 2^k-111210020012111 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 (111210020012101) 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, 109243634081 + ... + 109243635098.

It is an arithmetic number, because the mean of its divisors is an integer number (27857126820450).

Almost surely, 2^{111210020012111} is an apocalyptic number.

111210020012111 is a deficient number, since it is larger than the sum of its proper divisors (218487269689).

111210020012111 is an equidigital number, since it uses as much as digits as its factorization.

111210020012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218487269688.

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

The spelling of 111210020012111 in words is "one hundred eleven trillion, two hundred ten billion, twenty million, twelve thousand, one hundred eleven".