111102021382 has 32 divisors (see below), whose sum is σ = 183384207360. Its totient is φ = 50062430880.

The previous prime is 111102021361. The next prime is 111102021383. The reversal of 111102021382 is 283120201111.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111102021383) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3552369 + ... + 3583507.

It is an arithmetic number, because the mean of its divisors is an integer number (5730756480).

Almost surely, 2^111102021382 is an apocalyptic number.

111102021382 is a deficient number, since it is larger than the sum of its proper divisors (72282185978).

111102021382 is a wasteful number, since it uses less digits than its factorization.

111102021382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32556.

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 111102021382 its reverse (283120201111), we get a palindrome (394222222493).

The spelling of 111102021382 in words is "one hundred eleven billion, one hundred two million, twenty-one thousand, three hundred eighty-two".