111222121134 has 8 divisors (see below), whose sum is σ = 222444242280. Its totient is φ = 37074040376.

The previous prime is 111222121133. The next prime is 111222121139. The reversal of 111222121134 is 431121222111.

It is a sphenic number, since it is the product of 3 distinct primes.

111222121134 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 111222121134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111222121133) 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, 9268510089 + ... + 9268510100.

It is an arithmetic number, because the mean of its divisors is an integer number (27805530285).

Almost surely, 2^111222121134 is an apocalyptic number.

111222121134 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

111222121134 is a wasteful number, since it uses less digits than its factorization.

111222121134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18537020194.

The product of its digits is 192, while the sum is 21.

Adding to 111222121134 its reverse (431121222111), we get a palindrome (542343343245).

The spelling of 111222121134 in words is "one hundred eleven billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred thirty-four".