22220222000 has 40 divisors (see below), whose sum is σ = 53728501632. Its totient is φ = 8888088000.

The previous prime is 22220221987. The next prime is 22220222009. The reversal of 22220222000 is 22202222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (22220222009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5553056 + ... + 5557055.

Almost surely, 2^22220222000 is an apocalyptic number.

22220222000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22220222000 is an abundant number, since it is smaller than the sum of its proper divisors (31508279632).

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

22220222000 is a wasteful number, since it uses less digits than its factorization.

22220222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11110134 (or 11110118 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 22220222000 its reverse (22202222), we get a palindrome (22242424222).

It can be divided in two parts, 22 and 220222000, that added together give a palindrome (220222022).

The spelling of 22220222000 in words is "twenty-two billion, two hundred twenty million, two hundred twenty-two thousand".