1001002202198 has 4 divisors (see below), whose sum is σ = 1501503303300. Its totient is φ = 500501101098.

The previous prime is 1001002202191. The next prime is 1001002202209. The reversal of 1001002202198 is 8912022001001.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001002202191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250250550548 + ... + 250250550551.

It is an arithmetic number, because the mean of its divisors is an integer number (375375825825).

Almost surely, 2^{1001002202198} is an apocalyptic number.

1001002202198 is a deficient number, since it is larger than the sum of its proper divisors (500501101102).

1001002202198 is an equidigital number, since it uses as much as digits as its factorization.

1001002202198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500501101101.

The product of its (nonzero) digits is 576, while the sum is 26.

Adding to 1001002202198 its reverse (8912022001001), we get a palindrome (9913024203199).

The spelling of 1001002202198 in words is "one trillion, one billion, two million, two hundred two thousand, one hundred ninety-eight".