1002112198 has 4 divisors (see below), whose sum is σ = 1503168300. Its totient is φ = 501056098.

The previous prime is 1002112187. The next prime is 1002112207. The reversal of 1002112198 is 8912112001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8912112001 = 13 ⋅685547077.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250528048 + ... + 250528051.

It is an arithmetic number, because the mean of its divisors is an integer number (375792075).

Almost surely, 2^1002112198 is an apocalyptic number.

1002112198 is a deficient number, since it is larger than the sum of its proper divisors (501056102).

1002112198 is an equidigital number, since it uses as much as digits as its factorization.

1002112198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501056101.

The product of its (nonzero) digits is 288, while the sum is 25.

The square root of 1002112198 is about 31656.1557678755. The cubic root of 1002112198 is about 1000.7035708719.

Adding to 1002112198 its reverse (8912112001), we get a palindrome (9914224199).

The spelling of 1002112198 in words is "one billion, two million, one hundred twelve thousand, one hundred ninety-eight".