22222002220 has 48 divisors (see below), whose sum is σ = 51375693600. Its totient is φ = 8006584320.

The previous prime is 22222002203. The next prime is 22222002227. The reversal of 22222002220 is 2220022222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22222002194 and 22222002203.

It is not an unprimeable number, because it can be changed into a prime (22222002227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 439365 + ... + 487324.

It is an arithmetic number, because the mean of its divisors is an integer number (1070326950).

Almost surely, 2^22222002220 is an apocalyptic number.

22222002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22222002220 is an abundant number, since it is smaller than the sum of its proper divisors (29153691380).

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

22222002220 is a wasteful number, since it uses less digits than its factorization.

22222002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926818 (or 926816 counting only the distinct ones).

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

Adding to 22222002220 its reverse (2220022222), we get a palindrome (24442024442).

It can be divided in two parts, 22222002 and 220, that added together give a palindrome (22222222).

The spelling of 22222002220 in words is "twenty-two billion, two hundred twenty-two million, two thousand, two hundred twenty".