2000121100000 has 144 divisors (see below), whose sum is σ = 4959461917872. Its totient is φ = 793936000000.

The previous prime is 2000121099959. The next prime is 2000121100007. The reversal of 2000121100000 is 11210002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000121100007) 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 23 ways as a sum of consecutive naturals, for example, 13023660 + ... + 13176340.

It is an arithmetic number, because the mean of its divisors is an integer number (34440707763).

Almost surely, 2^{2000121100000} is an apocalyptic number.

2000121100000 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 2000121100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2479730958936).

2000121100000 is an abundant number, since it is smaller than the sum of its proper divisors (2959340817872).

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

2000121100000 is an equidigital number, since it uses as much as digits as its factorization.

2000121100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152847 (or 152819 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 2000121100000 its reverse (11210002), we get a palindrome (2000132310002).

The spelling of 2000121100000 in words is "two trillion, one hundred twenty-one million, one hundred thousand".