1000120198 has 16 divisors (see below), whose sum is σ = 1870354944. Its totient is φ = 389657160.

The previous prime is 1000120181. The next prime is 1000120243. The reversal of 1000120198 is 8910210001.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3246990 + ... + 3247297.

It is an arithmetic number, because the mean of its divisors is an integer number (116897184).

Almost surely, 2^1000120198 is an apocalyptic number.

1000120198 is a deficient number, since it is larger than the sum of its proper divisors (870234746).

1000120198 is a wasteful number, since it uses less digits than its factorization.

1000120198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6494307.

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

The square root of 1000120198 is about 31624.6770418292. The cubic root of 1000120198 is about 1000.0400643948.

Adding to 1000120198 its reverse (8910210001), we get a palindrome (9910330199).

The spelling of 1000120198 in words is "one billion, one hundred twenty thousand, one hundred ninety-eight".