222000028 has 12 divisors (see below), whose sum is σ = 408947560. Its totient is φ = 105157872.

The previous prime is 222000019. The next prime is 222000043. The reversal of 222000028 is 820000222.

222000028 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221999975 and 222000020.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1460451 + ... + 1460602.

Almost surely, 2^222000028 is an apocalyptic number.

It is an amenable number.

222000028 is a deficient number, since it is larger than the sum of its proper divisors (186947532).

222000028 is a wasteful number, since it uses less digits than its factorization.

222000028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2921076 (or 2921074 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 222000028 is about 14899.6653653698. The cubic root of 222000028 is about 605.5049201078.

The spelling of 222000028 in words is "two hundred twenty-two million, twenty-eight", and thus it is an aban number.