2120001515000 has 80 divisors (see below), whose sum is σ = 4968341809200. Its totient is φ = 847799456000.

The previous prime is 2120001514987. The next prime is 2120001515003. The reversal of 2120001515000 is 5151000212.

It is a self number, because there is not a number n which added to its sum of digits gives 2120001515000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120001515003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 21996917 + ... + 22093083.

It is an arithmetic number, because the mean of its divisors is an integer number (62104272615).

Almost surely, 2^{2120001515000} is an apocalyptic number.

2120001515000 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 2120001515000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2484170904600).

2120001515000 is an abundant number, since it is smaller than the sum of its proper divisors (2848340294200).

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

2120001515000 is an equidigital number, since it uses as much as digits as its factorization.

2120001515000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100602 (or 100583 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

Adding to 2120001515000 its reverse (5151000212), we get a palindrome (2125152515212).

The spelling of 2120001515000 in words is "two trillion, one hundred twenty billion, one million, five hundred fifteen thousand".