111020220000 has 300 divisors, whose sum is σ = 408009579516. Its totient is φ = 29604960000.

The previous prime is 111020219971. The next prime is 111020220007. The reversal of 111020220000 is 22020111.

It is a tau number, because it is divible by the number of its divisors (300).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111020220007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 49 ways as a sum of consecutive naturals, for example, 1585735 + ... + 1654265.

Almost surely, 2^111020220000 is an apocalyptic number.

111020220000 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 111020220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204004789758).

111020220000 is an abundant number, since it is smaller than the sum of its proper divisors (296989359516).

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

111020220000 is an frugal number, since it uses more digits than its factorization.

111020220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68573 (or 68541 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 111020220000 its reverse (22020111), we get a palindrome (111042240111).

The spelling of 111020220000 in words is "one hundred eleven billion, twenty million, two hundred twenty thousand".