99965222 has 32 divisors (see below), whose sum is σ = 179615232. Its totient is φ = 40797504.

The previous prime is 99965221. The next prime is 99965263. The reversal of 99965222 is 22256999.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99965221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90578 + ... + 91674.

It is an arithmetic number, because the mean of its divisors is an integer number (5612976).

Almost surely, 2^99965222 is an apocalyptic number.

99965222 is a deficient number, since it is larger than the sum of its proper divisors (79650010).

99965222 is a wasteful number, since it uses less digits than its factorization.

99965222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412.

The product of its digits is 174960, while the sum is 44.

The square root of 99965222 is about 9998.2609487850. The cubic root of 99965222 is about 464.1050687301.

Adding to 99965222 its reverse (22256999), we get a palindrome (122222221).

The spelling of 99965222 in words is "ninety-nine million, nine hundred sixty-five thousand, two hundred twenty-two".