2222422220 has 96 divisors (see below), whose sum is σ = 4899799296. Its totient is φ = 846028800.

The previous prime is 2222422217. The next prime is 2222422243. The reversal of 2222422220 is 222242222.

2222422220 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 = 2222422192 and 2222422201.

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, 8200685 + ... + 8200955.

It is an arithmetic number, because the mean of its divisors is an integer number (51039576).

Almost surely, 2^2222422220 is an apocalyptic number.

2222422220 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 2222422220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2449899648).

2222422220 is an abundant number, since it is smaller than the sum of its proper divisors (2677377076).

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

2222422220 is a wasteful number, since it uses less digits than its factorization.

2222422220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531 (or 529 counting only the distinct ones).

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

The square root of 2222422220 is about 47142.5733281500. The cubic root of 2222422220 is about 1304.9950274567.

2222422220 divided by its sum of digits (20) gives a palindrome (111121111).

Adding to 2222422220 its reverse (222242222), we get a palindrome (2444664442).

It can be divided in two parts, 22224 and 22220, that added together give a palindrome (44444).

The spelling of 2222422220 in words is "two billion, two hundred twenty-two million, four hundred twenty-two thousand, two hundred twenty".