99818211 has 16 divisors (see below), whose sum is σ = 134764416. Its totient is φ = 65713536.

The previous prime is 99818209. The next prime is 99818219. The reversal of 99818211 is 11281899.

It is not a de Polignac number, because 99818211 - 2¹ = 99818209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99818211.

It is not an unprimeable number, because it can be changed into a prime (99818219) 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, 177016 + ... + 177578.

It is an arithmetic number, because the mean of its divisors is an integer number (8422776).

Almost surely, 2^99818211 is an apocalyptic number.

99818211 is a deficient number, since it is larger than the sum of its proper divisors (34946205).

99818211 is a wasteful number, since it uses less digits than its factorization.

99818211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202.

The product of its digits is 10368, while the sum is 39.

The square root of 99818211 is about 9990.9064153359. The cubic root of 99818211 is about 463.8774494896.

The spelling of 99818211 in words is "ninety-nine million, eight hundred eighteen thousand, two hundred eleven".