9001222985 has 8 divisors (see below), whose sum is σ = 11436848136. Its totient is φ = 6777391360.

The previous prime is 9001222969. The next prime is 9001222991. The reversal of 9001222985 is 5892221009.

It can be written as a sum of positive squares in 4 ways, for example, as 362635849 + 8638587136 = 19043^2 + 92944^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9001222985 - 2⁴ = 9001222969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52948286 + ... + 52948455.

It is an arithmetic number, because the mean of its divisors is an integer number (1429606017).

Almost surely, 2^9001222985 is an apocalyptic number.

It is an amenable number.

9001222985 is a deficient number, since it is larger than the sum of its proper divisors (2435625151).

9001222985 is a wasteful number, since it uses less digits than its factorization.

9001222985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105896763.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 9001222985 is about 94874.7752830013. The cubic root of 9001222985 is about 2080.1780377221.

The spelling of 9001222985 in words is "nine billion, one million, two hundred twenty-two thousand, nine hundred eighty-five".