222000890 has 16 divisors (see below), whose sum is σ = 399928320. Its totient is φ = 88727760.

The previous prime is 222000871. The next prime is 222000901. The reversal of 222000890 is 98000222.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4775 + ... + 21605.

It is an arithmetic number, because the mean of its divisors is an integer number (24995520).

Almost surely, 2^222000890 is an apocalyptic number.

222000890 is a deficient number, since it is larger than the sum of its proper divisors (177927430).

222000890 is a wasteful number, since it uses less digits than its factorization.

222000890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18157.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 222000890 is about 14899.6942921659. The cubic root of 222000890 is about 605.5057038082.

The spelling of 222000890 in words is "two hundred twenty-two million, eight hundred ninety", and thus it is an aban number.