2120000000000 has 286 divisors, whose sum is σ = 5399340709734. Its totient is φ = 832000000000.

The previous prime is 2119999999981. The next prime is 2120000000023. The reversal of 2120000000000 is 212.

It can be written as a sum of positive squares in 11 ways, for example, as 85656899584 + 2034343100416 = 292672^2 + 1426304^2 .

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 21 ways as a sum of consecutive naturals, for example, 39999999974 + ... + 40000000026.

Almost surely, 2^{2120000000000} is an apocalyptic number.

2120000000000 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 2120000000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2699670354867).

2120000000000 is an abundant number, since it is smaller than the sum of its proper divisors (3279340709734).

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

2120000000000 is an frugal number, since it uses more digits than its factorization.

2120000000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 5.

Adding to 2120000000000 its reverse (212), we get a palindrome (2120000000212).

Multiplying 2120000000000 by its reverse (212), we get a square (449440000000000 = 21200000²).

2120000000000 divided by its reverse (212) gives a 10-th power (10000000000 = 10¹⁰).

The spelling of 2120000000000 in words is "two trillion, one hundred twenty billion", and thus it is an aban number.