1121001010000 has 200 divisors, whose sum is σ = 2734545290400. Its totient is φ = 445030080000.

The previous prime is 1121001009979. The next prime is 1121001010007. The reversal of 1121001010000 is 101001211.

It is a tau number, because it is divible by the number of its divisors (200).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121001010007) 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, 890389371 + ... + 890390629.

It is an arithmetic number, because the mean of its divisors is an integer number (13672726452).

Almost surely, 2^{1121001010000} is an apocalyptic number.

1121001010000 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 1121001010000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1367272645200).

1121001010000 is an abundant number, since it is smaller than the sum of its proper divisors (1613544280400).

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

1121001010000 is a wasteful number, since it uses less digits than its factorization.

1121001010000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1887 (or 1866 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 1121001010000 its reverse (101001211), we get a palindrome (1121102011211).

The spelling of 1121001010000 in words is "one trillion, one hundred twenty-one billion, one million, ten thousand".