99121186 has 16 divisors (see below), whose sum is σ = 157692960. Its totient is φ = 46566720.

The previous prime is 99121177. The next prime is 99121189. The reversal of 99121186 is 68112199.

It is not an unprimeable number, because it can be changed into a prime (99121189) 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, 21385 + ... + 25603.

It is an arithmetic number, because the mean of its divisors is an integer number (9855810).

Almost surely, 2^99121186 is an apocalyptic number.

99121186 is a deficient number, since it is larger than the sum of its proper divisors (58571774).

99121186 is a wasteful number, since it uses less digits than its factorization.

99121186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4929.

The product of its digits is 7776, while the sum is 37.

The square root of 99121186 is about 9955.9623341995. The cubic root of 99121186 is about 462.7951829789.

The spelling of 99121186 in words is "ninety-nine million, one hundred twenty-one thousand, one hundred eighty-six".