111111021122000 has 80 divisors (see below), whose sum is σ = 268672746700800. Its totient is φ = 44443366659200.

The previous prime is 111111021121987. The next prime is 111111021122047. The reversal of 111111021122000 is 221120111111.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87688961 + ... + 88947039.

It is an arithmetic number, because the mean of its divisors is an integer number (3358409333760).

Almost surely, 2^{111111021122000} is an apocalyptic number.

111111021122000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111111021122000 is an abundant number, since it is smaller than the sum of its proper divisors (157561725578800).

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

111111021122000 is a wasteful number, since it uses less digits than its factorization.

111111021122000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302261 (or 1302245 counting only the distinct ones).

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

Adding to 111111021122000 its reverse (221120111111), we get a palindrome (111332141233111).

The spelling of 111111021122000 in words is "one hundred eleven trillion, one hundred eleven billion, twenty-one million, one hundred twenty-two thousand".