222001008 has 20 divisors (see below), whose sum is σ = 573502728. Its totient is φ = 74000320.

The previous prime is 222001001. The next prime is 222001009. The reversal of 222001008 is 800100222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222001001) by changing a digit.

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, 2312463 + ... + 2312558.

Almost surely, 2^222001008 is an apocalyptic number.

It is an amenable number.

222001008 is an abundant number, since it is smaller than the sum of its proper divisors (351501720).

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

222001008 is a wasteful number, since it uses less digits than its factorization.

222001008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4625032 (or 4625026 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 222001008 is about 14899.6982519781. The cubic root of 222001008 is about 605.5058110896.

The spelling of 222001008 in words is "two hundred twenty-two million, one thousand, eight".