111000021220000 has 480 divisors, whose sum is σ = 313886877796800. Its totient is φ = 38201932800000.

The previous prime is 111000021219991. The next prime is 111000021220021. The reversal of 111000021220000 is 22120000111.

111000021220000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4468407580 + ... + 4468432420.

It is an arithmetic number, because the mean of its divisors is an integer number (653930995410).

Almost surely, 2^{111000021220000} is an apocalyptic number.

111000021220000 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 111000021220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156943438898400).

111000021220000 is an abundant number, since it is smaller than the sum of its proper divisors (202886856576800).

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

111000021220000 is a wasteful number, since it uses less digits than its factorization.

111000021220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25970 (or 25947 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 111000021220000 its reverse (22120000111), we get a palindrome (111022141220111).

The spelling of 111000021220000 in words is "one hundred eleven trillion, twenty-one million, two hundred twenty thousand".