22220222222 has 64 divisors (see below), whose sum is σ = 38616956928. Its totient is φ = 9494604000.

The previous prime is 22220222221. The next prime is 22220222251. The reversal of 22220222222 is 22222202222.

22220222222 is a modest number, since divided by 222222 gives 22220 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 22220222194 and 22220222203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220222221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5599283 + ... + 5603249.

It is an arithmetic number, because the mean of its divisors is an integer number (603389952).

Almost surely, 2^22220222222 is an apocalyptic number.

22220222222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22220222222 is a deficient number, since it is larger than the sum of its proper divisors (16396734706).

22220222222 is a wasteful number, since it uses less digits than its factorization.

22220222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4245.

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

Adding to 22220222222 its reverse (22222202222), we get a palindrome (44442424444).

It can be divided in two parts, 222202222 and 22, that multiplied together give a palindrome (4888448884).

The spelling of 22220222222 in words is "twenty-two billion, two hundred twenty million, two hundred twenty-two thousand, two hundred twenty-two".