2001001110120 has 192 divisors, whose sum is σ = 6753092860800. Its totient is φ = 513240645120.

The previous prime is 2001001110089. The next prime is 2001001110133. The reversal of 2001001110120 is 210111001002.

It is a happy number.

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

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 47 ways as a sum of consecutive naturals, for example, 2381335 + ... + 3110105.

It is an arithmetic number, because the mean of its divisors is an integer number (35172358650).

Almost surely, 2^{2001001110120} is an apocalyptic number.

2001001110120 is a gapful number since it is divisible by the number (20) 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 2001001110120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3376546430400).

2001001110120 is an abundant number, since it is smaller than the sum of its proper divisors (4752091750680).

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

2001001110120 is a wasteful number, since it uses less digits than its factorization.

2001001110120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729080 (or 729073 counting only the distinct ones).

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

Adding to 2001001110120 its reverse (210111001002), we get a palindrome (2211112111122).

The spelling of 2001001110120 in words is "two trillion, one billion, one million, one hundred ten thousand, one hundred twenty".