111111212214 has 32 divisors (see below), whose sum is σ = 246926556000. Its totient is φ = 37035158112.

The previous prime is 111111212209. The next prime is 111111212227. The reversal of 111111212214 is 412212111111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1334932 + ... + 1415720.

It is an arithmetic number, because the mean of its divisors is an integer number (7716454875).

Almost surely, 2^111111212214 is an apocalyptic number.

111111212214 is an abundant number, since it is smaller than the sum of its proper divisors (135815343786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111111212214 is a wasteful number, since it uses less digits than its factorization.

111111212214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106269 (or 106263 counting only the distinct ones).

The product of its digits is 32, while the sum is 18.

Adding to 111111212214 its reverse (412212111111), we get a palindrome (523323323325).

The spelling of 111111212214 in words is "one hundred eleven billion, one hundred eleven million, two hundred twelve thousand, two hundred fourteen".