2120322220 has 24 divisors (see below), whose sum is σ = 4455856944. Its totient is φ = 847523136.

The previous prime is 2120322181. The next prime is 2120322289. The reversal of 2120322220 is 222230212.

It is a junction number, because it is equal to n+sod(n) for n = 2120322194 and 2120322203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8607 + ... + 65686.

It is an arithmetic number, because the mean of its divisors is an integer number (185660706).

Almost surely, 2^2120322220 is an apocalyptic number.

2120322220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120322220 is an abundant number, since it is smaller than the sum of its proper divisors (2335534724).

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

2120322220 is a wasteful number, since it uses less digits than its factorization.

2120322220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75729 (or 75727 counting only the distinct ones).

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

The square root of 2120322220 is about 46046.9566855400. The cubic root of 2120322220 is about 1284.6967383796.

Adding to 2120322220 its reverse (222230212), we get a palindrome (2342552432).

The spelling of 2120322220 in words is "two billion, one hundred twenty million, three hundred twenty-two thousand, two hundred twenty".