2120250020240 has 120 divisors (see below), whose sum is σ = 5458019648760. Its totient is φ = 765371791360.

The previous prime is 2120250020221. The next prime is 2120250020257. The reversal of 2120250020240 is 420200520212.

It can be written as a sum of positive squares in 4 ways, for example, as 424462674064 + 1695787346176 = 651508^2 + 1302224^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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 23 ways as a sum of consecutive naturals, for example, 526766 + ... + 2125554.

It is an arithmetic number, because the mean of its divisors is an integer number (45483497073).

Almost surely, 2^{2120250020240} is an apocalyptic number.

2120250020240 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 2120250020240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2729009824380).

2120250020240 is an abundant number, since it is smaller than the sum of its proper divisors (3337769628520).

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

2120250020240 is a wasteful number, since it uses less digits than its factorization.

2120250020240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598961 (or 1598944 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 2120250020240 its reverse (420200520212), we get a palindrome (2540450540452).

The spelling of 2120250020240 in words is "two trillion, one hundred twenty billion, two hundred fifty million, twenty thousand, two hundred forty".