2120210020220 has 96 divisors (see below), whose sum is σ = 4654857500160. Its totient is φ = 810269982720.

The previous prime is 2120210020183. The next prime is 2120210020261. The reversal of 2120210020220 is 220200120212.

It is a junction number, because it is equal to n+sod(n) for n = 2120210020195 and 2120210020204.

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, 24554162 + ... + 24640358.

It is an arithmetic number, because the mean of its divisors is an integer number (48488098960).

Almost surely, 2^{2120210020220} is an apocalyptic number.

2120210020220 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 2120210020220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2327428750080).

2120210020220 is an abundant number, since it is smaller than the sum of its proper divisors (2534647479940).

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

2120210020220 is a wasteful number, since it uses less digits than its factorization.

2120210020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86743 (or 86741 counting only the distinct ones).

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

Adding to 2120210020220 its reverse (220200120212), we get a palindrome (2340410140432).

The spelling of 2120210020220 in words is "two trillion, one hundred twenty billion, two hundred ten million, twenty thousand, two hundred twenty".