111100022000 has 120 divisors (see below), whose sum is σ = 295282465296. Its totient is φ = 40399920000.

The previous prime is 111100021999. The next prime is 111100022009. The reversal of 111100022000 is 220001111.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100022009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12455 + ... + 471545.

Almost surely, 2^111100022000 is an apocalyptic number.

111100022000 is a gapful number since it is divisible by the number (10) 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 111100022000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147641232648).

111100022000 is an abundant number, since it is smaller than the sum of its proper divisors (184182443296).

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

111100022000 is a wasteful number, since it uses less digits than its factorization.

111100022000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459136 (or 459109 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 111100022000 its reverse (220001111), we get a palindrome (111320023111).

The spelling of 111100022000 in words is "one hundred eleven billion, one hundred million, twenty-two thousand".