1018441222198 has 48 divisors (see below), whose sum is σ = 1572515100000. Its totient is φ = 494683338240.

The previous prime is 1018441222177. The next prime is 1018441222237. The reversal of 1018441222198 is 8912221448101.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 815404678 + ... + 815405926.

It is an arithmetic number, because the mean of its divisors is an integer number (32760731250).

Almost surely, 2^{1018441222198} is an apocalyptic number.

1018441222198 is a deficient number, since it is larger than the sum of its proper divisors (554073877802).

1018441222198 is a wasteful number, since it uses less digits than its factorization.

1018441222198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357 (or 2314 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 43.

The spelling of 1018441222198 in words is "one trillion, eighteen billion, four hundred forty-one million, two hundred twenty-two thousand, one hundred ninety-eight".