111101211021444 has 96 divisors (see below), whose sum is σ = 304348973220096. Its totient is φ = 30877992529920.

The previous prime is 111101211021439. The next prime is 111101211021461. The reversal of 111101211021444 is 444120112101111.

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 31 ways as a sum of consecutive naturals, for example, 8966592 + ... + 17395464.

It is an arithmetic number, because the mean of its divisors is an integer number (3170301804376).

Almost surely, 2^{111101211021444} is an apocalyptic number.

111101211021444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111101211021444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152174486610048).

111101211021444 is an abundant number, since it is smaller than the sum of its proper divisors (193247762198652).

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

111101211021444 is a wasteful number, since it uses less digits than its factorization.

111101211021444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8433165 (or 8433163 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 24.

Adding to 111101211021444 its reverse (444120112101111), we get a palindrome (555221323122555).

The spelling of 111101211021444 in words is "one hundred eleven trillion, one hundred one billion, two hundred eleven million, twenty-one thousand, four hundred forty-four".