111112202211111 has 12 divisors (see below), whose sum is σ = 166029727442280. Its totient is φ = 71520497974800.

The previous prime is 111112202211079. The next prime is 111112202211161.

111112202211111 is a `hidden beast` number, since 1 + 1 + 111 + 220 + 221 + 1 + 111 = 666.

111112202211111 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 111112202211111 - 2⁵ = 111112202211079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111112202211161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212858624665 + ... + 212858625186.

It is an arithmetic number, because the mean of its divisors is an integer number (13835810620190).

Almost surely, 2^{111112202211111} is an apocalyptic number.

111112202211111 is a deficient number, since it is larger than the sum of its proper divisors (54917525231169).

111112202211111 is a wasteful number, since it uses less digits than its factorization.

111112202211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425717249886 (or 425717249883 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 18.

It can be divided in two parts, 11111220 and 2211111, that added together give a palindrome (13322331).

The spelling of 111112202211111 in words is "one hundred eleven trillion, one hundred twelve billion, two hundred two million, two hundred eleven thousand, one hundred eleven".