1112021100000 has 432 divisors, whose sum is σ = 3973943151360. Its totient is φ = 294940800000.

The previous prime is 1112021099983. The next prime is 1112021100019. The reversal of 1112021100000 is 11202111.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 171896766 + ... + 171903234.

It is an arithmetic number, because the mean of its divisors is an integer number (9198942480).

Almost surely, 2^{1112021100000} is an apocalyptic number.

1112021100000 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 1112021100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1986971575680).

1112021100000 is an abundant number, since it is smaller than the sum of its proper divisors (2861922051360).

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

1112021100000 is an equidigital number, since it uses as much as digits as its factorization.

1112021100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6701 (or 6670 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1112021100000 its reverse (11202111), we get a palindrome (1112032302111).

The spelling of 1112021100000 in words is "one trillion, one hundred twelve billion, twenty-one million, one hundred thousand".