99187212 has 24 divisors (see below), whose sum is σ = 231840000. Its totient is φ = 33004816.

The previous prime is 99187211. The next prime is 99187229. The reversal of 99187212 is 21278199.

It is not an unprimeable number, because it can be changed into a prime (99187211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289 + ... + 14087.

It is an arithmetic number, because the mean of its divisors is an integer number (9660000).

Almost surely, 2^99187212 is an apocalyptic number.

It is an amenable number.

99187212 is an abundant number, since it is smaller than the sum of its proper divisors (132652788).

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

99187212 is a wasteful number, since it uses less digits than its factorization.

99187212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14405 (or 14403 counting only the distinct ones).

The product of its digits is 18144, while the sum is 39.

The square root of 99187212 is about 9959.2776846516. The cubic root of 99187212 is about 462.8979182729.

It can be divided in two parts, 99187 and 212, that added together give a palindrome (99399).

The spelling of 99187212 in words is "ninety-nine million, one hundred eighty-seven thousand, two hundred twelve".