2222202220 has 24 divisors (see below), whose sum is σ = 5333285664. Its totient is φ = 761897856.

The previous prime is 2222202211. The next prime is 2222202223. The reversal of 2222202220 is 222022222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2222202194 and 2222202203.

It is not an unprimeable number, because it can be changed into a prime (2222202223) 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, 7936297 + ... + 7936576.

It is an arithmetic number, because the mean of its divisors is an integer number (222220236).

Almost surely, 2^2222202220 is an apocalyptic number.

2222202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222202220 is an abundant number, since it is smaller than the sum of its proper divisors (3111083444).

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

2222202220 is a wasteful number, since it uses less digits than its factorization.

2222202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15872889 (or 15872887 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 2222202220 is about 47140.2399230212. The cubic root of 2222202220 is about 1304.9519650752.

Adding to 2222202220 its reverse (222022222), we get a palindrome (2444224442).

It can be divided in two parts, 2 and 222202220, that added together give a palindrome (222202222).

The spelling of 2222202220 in words is "two billion, two hundred twenty-two million, two hundred two thousand, two hundred twenty".