2122441220 has 24 divisors (see below), whose sum is σ = 4532673600. Its totient is φ = 834586592.

The previous prime is 2122441213. The next prime is 2122441229. The reversal of 2122441220 is 221442212.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2122441192 and 2122441201.

It is not an unprimeable number, because it can be changed into a prime (2122441229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 898160 + ... + 900519.

It is an arithmetic number, because the mean of its divisors is an integer number (188861400).

Almost surely, 2^2122441220 is an apocalyptic number.

2122441220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122441220 is an abundant number, since it is smaller than the sum of its proper divisors (2410232380).

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

2122441220 is a wasteful number, since it uses less digits than its factorization.

2122441220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798747 (or 1798745 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 2122441220 is about 46069.9600607598. The cubic root of 2122441220 is about 1285.1245610957.

Adding to 2122441220 its reverse (221442212), we get a palindrome (2343883432).

The spelling of 2122441220 in words is "two billion, one hundred twenty-two million, four hundred forty-one thousand, two hundred twenty".