99218210 has 48 divisors (see below), whose sum is σ = 221040576. Its totient is φ = 31397184.

The previous prime is 99218177. The next prime is 99218219. The reversal of 99218210 is 1281299.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (99218219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7637 + ... + 16023.

It is an arithmetic number, because the mean of its divisors is an integer number (4605012).

Almost surely, 2^99218210 is an apocalyptic number.

99218210 is an abundant number, since it is smaller than the sum of its proper divisors (121822366).

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

99218210 is a wasteful number, since it uses less digits than its factorization.

99218210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8427 (or 8414 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 99218210 is about 9960.8338004406. The cubic root of 99218210 is about 462.9461348890.

The spelling of 99218210 in words is "ninety-nine million, two hundred eighteen thousand, two hundred ten".