2220244220 has 24 divisors (see below), whose sum is σ = 4696062000. Its totient is φ = 881707392.

The previous prime is 2220244219. The next prime is 2220244223. The reversal of 2220244220 is 224420222.

2220244220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 2220244192 and 2220244201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220244223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396545 + ... + 402104.

It is an arithmetic number, because the mean of its divisors is an integer number (195669250).

Almost surely, 2^2220244220 is an apocalyptic number.

2220244220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220244220 is an abundant number, since it is smaller than the sum of its proper divisors (2475817780).

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

2220244220 is a wasteful number, since it uses less digits than its factorization.

2220244220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798797 (or 798795 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 2220244220 is about 47119.4675267028. The cubic root of 2220244220 is about 1304.5685846114.

Adding to 2220244220 its reverse (224420222), we get a palindrome (2444664442).

The spelling of 2220244220 in words is "two billion, two hundred twenty million, two hundred forty-four thousand, two hundred twenty".