111440223001002 has 384 divisors, whose sum is σ = 268499778269184. Its totient is φ = 30198048970752.

The previous prime is 111440223000923. The next prime is 111440223001013. The reversal of 111440223001002 is 200100322044111.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 111440223001002.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 173312943693 + ... + 173312944335.

It is an arithmetic number, because the mean of its divisors is an integer number (699218172576).

Almost surely, 2^{111440223001002} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111440223001002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134249889134592).

111440223001002 is an abundant number, since it is smaller than the sum of its proper divisors (157059555268182).

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

111440223001002 is a wasteful number, since it uses less digits than its factorization.

111440223001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222 (or 1185 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 111440223001002 its reverse (200100322044111), we get a palindrome (311540545045113).

The spelling of 111440223001002 in words is "one hundred eleven trillion, four hundred forty billion, two hundred twenty-three million, one thousand, two".