222180008 has 8 divisors (see below), whose sum is σ = 416587530. Its totient is φ = 111090000.

The previous prime is 222180001. The next prime is 222180047. The reversal of 222180008 is 800081222.

222180008 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 172081924 + 50098084 = 13118^2 + 7078^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (222180001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13886243 + ... + 13886258.

Almost surely, 2^222180008 is an apocalyptic number.

It is an amenable number.

222180008 is a deficient number, since it is larger than the sum of its proper divisors (194407522).

222180008 is a wasteful number, since it uses less digits than its factorization.

222180008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27772507 (or 27772503 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 222180008 is about 14905.7038746917. The cubic root of 222180008 is about 605.6685076822.

The spelling of 222180008 in words is "two hundred twenty-two million, one hundred eighty thousand, eight".