2120211200020 has 24 divisors (see below), whose sum is σ = 4464845884800. Its totient is φ = 845722124832.

The previous prime is 2120211199963. The next prime is 2120211200039. The reversal of 2120211200020 is 200021120212.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 147639840 + ... + 147654199.

It is an arithmetic number, because the mean of its divisors is an integer number (186035245200).

Almost surely, 2^{2120211200020} is an apocalyptic number.

2120211200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120211200020 is an abundant number, since it is smaller than the sum of its proper divisors (2344634684780).

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

2120211200020 is a wasteful number, since it uses less digits than its factorization.

2120211200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295294407 (or 295294405 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2120211200020 its reverse (200021120212), we get a palindrome (2320232320232).

The spelling of 2120211200020 in words is "two trillion, one hundred twenty billion, two hundred eleven million, two hundred thousand, twenty".