111212110121094 has 256 divisors, whose sum is σ = 256000811351040. Its totient is φ = 35769035427840.

The previous prime is 111212110121083. The next prime is 111212110121113. The reversal of 111212110121094 is 490121011212111.

It is a super-2 number, since 2×111212110121094² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 94167747184 + ... + 94167748364.

It is an arithmetic number, because the mean of its divisors is an integer number (1000003169340).

Almost surely, 2^{111212110121094} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111212110121094, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128000405675520).

111212110121094 is an abundant number, since it is smaller than the sum of its proper divisors (144788701229946).

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

111212110121094 is a wasteful number, since it uses less digits than its factorization.

111212110121094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804 (or 2798 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 27.

The spelling of 111212110121094 in words is "one hundred eleven trillion, two hundred twelve billion, one hundred ten million, one hundred twenty-one thousand, ninety-four".