1110121010000 has 100 divisors (see below), whose sum is σ = 2699456288100. Its totient is φ = 442108416000.

The previous prime is 1110121009981. The next prime is 1110121010059. The reversal of 1110121010000 is 101210111.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 919742377024 + 190378632976 = 959032^2 + 436324^2 .

It is a tau number, because it is divible by the number of its divisors (100).

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

It is a self number, because there is not a number n which added to its sum of digits gives 1110121010000.

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 2047616 + ... + 2532384.

It is an arithmetic number, because the mean of its divisors is an integer number (26994562881).

Almost surely, 2^{1110121010000} is an apocalyptic number.

1110121010000 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 1110121010000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1349728144050).

1110121010000 is an abundant number, since it is smaller than the sum of its proper divisors (1589335278100).

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

1110121010000 is an equidigital number, since it uses as much as digits as its factorization.

1110121010000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485026 (or 485005 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 1110121010000 its reverse (101210111), we get a palindrome (1110222220111).

The spelling of 1110121010000 in words is "one trillion, one hundred ten billion, one hundred twenty-one million, ten thousand".