22200222228 has 24 divisors (see below), whose sum is σ = 51848028960. Its totient is φ = 7393286880.

The previous prime is 22200222223. The next prime is 22200222229. The reversal of 22200222228 is 82222200222.

It is a junction number, because it is equal to n+sod(n) for n = 22200222198 and 22200222207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22200222221) 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, 834763 + ... + 860946.

It is an arithmetic number, because the mean of its divisors is an integer number (2160334540).

Almost surely, 2^22200222228 is an apocalyptic number.

It is an amenable number.

22200222228 is an abundant number, since it is smaller than the sum of its proper divisors (29647806732).

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

22200222228 is a wasteful number, since it uses less digits than its factorization.

22200222228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696807 (or 1696805 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The spelling of 22200222228 in words is "twenty-two billion, two hundred million, two hundred twenty-two thousand, two hundred twenty-eight".