99522210 has 64 divisors (see below), whose sum is σ = 246343680. Its totient is φ = 25717440.

The previous prime is 99522179. The next prime is 99522217. The reversal of 99522210 is 1222599.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (99522217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230695 + ... + 231125.

It is an arithmetic number, because the mean of its divisors is an integer number (3849120).

Almost surely, 2^99522210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99522210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123171840).

99522210 is an abundant number, since it is smaller than the sum of its proper divisors (146821470).

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

99522210 is a wasteful number, since it uses less digits than its factorization.

99522210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 99522210 is about 9976.0818962156. The cubic root of 99522210 is about 463.4184679864.

The spelling of 99522210 in words is "ninety-nine million, five hundred twenty-two thousand, two hundred ten".