2000121022000 has 80 divisors (see below), whose sum is σ = 4846391596800. Its totient is φ = 798377779200.

The previous prime is 2000121021991. The next prime is 2000121022007. The reversal of 2000121022000 is 2201210002.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (2000121022007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85905 + ... + 2001904.

It is an arithmetic number, because the mean of its divisors is an integer number (60579894960).

Almost surely, 2^{2000121022000} is an apocalyptic number.

2000121022000 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 2000121022000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2423195798400).

2000121022000 is an abundant number, since it is smaller than the sum of its proper divisors (2846270574800).

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

2000121022000 is a wasteful number, since it uses less digits than its factorization.

2000121022000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088311 (or 2088295 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 2000121022000 its reverse (2201210002), we get a palindrome (2002322232002).

The spelling of 2000121022000 in words is "two trillion, one hundred twenty-one million, twenty-two thousand".