2000001021120 has 84 divisors (see below), whose sum is σ = 6879170188800. Its totient is φ = 533333604864.

The previous prime is 2000001021091. The next prime is 2000001021127. The reversal of 2000001021120 is 211201000002.

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

It is not an unprimeable number, because it can be changed into a prime (2000001021127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 347219520 + ... + 347225279.

It is an arithmetic number, because the mean of its divisors is an integer number (81894883200).

Almost surely, 2^{2000001021120} is an apocalyptic number.

2000001021120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2000001021120 is an abundant number, since it is smaller than the sum of its proper divisors (4879169167680).

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

2000001021120 is a wasteful number, since it uses less digits than its factorization.

2000001021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694444822 (or 694444809 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 2000001021120 its reverse (211201000002), we get a palindrome (2211202021122).

The spelling of 2000001021120 in words is "two trillion, one million, twenty-one thousand, one hundred twenty".