22222200220002 has 24 divisors (see below), whose sum is σ = 49449400491036. Its totient is φ = 7207200071136.

The previous prime is 22222200219991. The next prime is 22222200220019. The reversal of 22222200220002 is 20002200222222.

22222200220002 is a `hidden beast` number, since 2 + 222 + 220 + 0 + 220 + 0 + 0 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15660769402161 + 6561430817841 = 3957369^2 + 2561529^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16683332833 + ... + 16683334164.

Almost surely, 2^{22222200220002} is an apocalyptic number.

22222200220002 is an abundant number, since it is smaller than the sum of its proper divisors (27227200271034).

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

22222200220002 is a wasteful number, since it uses less digits than its factorization.

22222200220002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33366667042 (or 33366667039 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 22222200220002 its reverse (20002200222222), we get a palindrome (42224400442224).

The spelling of 22222200220002 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred million, two hundred twenty thousand, two".