2120220320020 has 96 divisors (see below), whose sum is σ = 4913328865536. Its totient is φ = 762136012800.

The previous prime is 2120220319991. The next prime is 2120220320087. The reversal of 2120220320020 is 200230220212.

It is a super-2 number, since 2×2120220320020² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2120220319976 and 2120220320003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6490524 + ... + 6809356.

It is an arithmetic number, because the mean of its divisors is an integer number (51180509016).

Almost surely, 2^{2120220320020} is an apocalyptic number.

2120220320020 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 2120220320020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2456664432768).

2120220320020 is an abundant number, since it is smaller than the sum of its proper divisors (2793108545516).

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

2120220320020 is a wasteful number, since it uses less digits than its factorization.

2120220320020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319201 (or 319199 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 2120220320020 its reverse (200230220212), we get a palindrome (2320450540232).

The spelling of 2120220320020 in words is "two trillion, one hundred twenty billion, two hundred twenty million, three hundred twenty thousand, twenty".