1110021220000 has 240 divisors, whose sum is σ = 3404661809472. Its totient is φ = 345980160000.

The previous prime is 1110021219991. The next prime is 1110021220003. The reversal of 1110021220000 is 221200111.

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

It is not an unprimeable number, because it can be changed into a prime (1110021220003) 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 39 ways as a sum of consecutive naturals, for example, 1179604 + ... + 1900396.

Almost surely, 2^{1110021220000} is an apocalyptic number.

1110021220000 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 1110021220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1702330904736).

1110021220000 is an abundant number, since it is smaller than the sum of its proper divisors (2294640589472).

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

1110021220000 is an equidigital number, since it uses as much as digits as its factorization.

1110021220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720841 (or 720818 counting only the distinct ones).

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

Adding to 1110021220000 its reverse (221200111), we get a palindrome (1110242420111).

The spelling of 1110021220000 in words is "one trillion, one hundred ten billion, twenty-one million, two hundred twenty thousand".