2120210220020 has 48 divisors (see below), whose sum is σ = 4691925907200. Its totient is φ = 802566011520.

The previous prime is 2120210219999. The next prime is 2120210220061. The reversal of 2120210220020 is 200220120212.

It is a junction number, because it is equal to n+sod(n) for n = 2120210219977 and 2120210220004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2716115 + ... + 3408474.

It is an arithmetic number, because the mean of its divisors is an integer number (97748456400).

Almost surely, 2^{2120210220020} is an apocalyptic number.

2120210220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120210220020 is an abundant number, since it is smaller than the sum of its proper divisors (2571715687180).

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

2120210220020 is a wasteful number, since it uses less digits than its factorization.

2120210220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6125528 (or 6125526 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2120210220020 its reverse (200220120212), we get a palindrome (2320430340232).

The spelling of 2120210220020 in words is "two trillion, one hundred twenty billion, two hundred ten million, two hundred twenty thousand, twenty".