12099198 has 16 divisors (see below), whose sum is σ = 24449040. Its totient is φ = 3991296.

The previous prime is 12099161. The next prime is 12099209. The reversal of 12099198 is 89199021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9813 + ... + 10976.

It is an arithmetic number, because the mean of its divisors is an integer number (1528065).

Almost surely, 2^12099198 is an apocalyptic number.

12099198 is an abundant number, since it is smaller than the sum of its proper divisors (12349842).

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

12099198 is a wasteful number, since it uses less digits than its factorization.

12099198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20891.

The product of its (nonzero) digits is 11664, while the sum is 39.

The square root of 12099198 is about 3478.3901448802. The cubic root of 12099198 is about 229.5719701565.

The spelling of 12099198 in words is "twelve million, ninety-nine thousand, one hundred ninety-eight".