2120000020000 has 60 divisors (see below), whose sum is σ = 5215518098406. Its totient is φ = 848000000000.

The previous prime is 2120000019983. The next prime is 2120000020003. The reversal of 2120000020000 is 200000212.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 164488647184 + 1955511372816 = 405572^2 + 1398396^2 .

It is not an unprimeable number, because it can be changed into a prime (2120000020003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 52980001 + ... + 53020000.

Almost surely, 2^{2120000020000} is an apocalyptic number.

2120000020000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120000020000 is an abundant number, since it is smaller than the sum of its proper divisors (3095518078406).

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

2120000020000 is an equidigital number, since it uses as much as digits as its factorization.

2120000020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106000031 (or 106000008 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

Adding to 2120000020000 its reverse (200000212), we get a palindrome (2120200020212).

The spelling of 2120000020000 in words is "two trillion, one hundred twenty billion, twenty thousand".