100012198 has 32 divisors (see below), whose sum is σ = 179262720. Its totient is φ = 41244960.

The previous prime is 100012189. The next prime is 100012217. The reversal of 100012198 is 891210001.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13911 + ... + 19837.

It is an arithmetic number, because the mean of its divisors is an integer number (5601960).

Almost surely, 2^100012198 is an apocalyptic number.

100012198 is a deficient number, since it is larger than the sum of its proper divisors (79250522).

100012198 is a wasteful number, since it uses less digits than its factorization.

100012198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6012.

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 100012198 is about 10000.6098814022. The cubic root of 100012198 is about 464.1777552942.

Adding to 100012198 its reverse (891210001), we get a palindrome (991222199).

The spelling of 100012198 in words is "one hundred million, twelve thousand, one hundred ninety-eight".