1272002227198 has 16 divisors (see below), whose sum is σ = 2021217091920. Its totient is φ = 598689614016.

The previous prime is 1272002227193. The next prime is 1272002227267. The reversal of 1272002227198 is 8917222002721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272002227193) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 106598311 + ... + 106610242.

It is an arithmetic number, because the mean of its divisors is an integer number (126326068245).

Almost surely, 2^{1272002227198} is an apocalyptic number.

1272002227198 is a deficient number, since it is larger than the sum of its proper divisors (749214864722).

1272002227198 is a wasteful number, since it uses less digits than its factorization.

1272002227198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213208731.

The product of its (nonzero) digits is 112896, while the sum is 43.

The spelling of 1272002227198 in words is "one trillion, two hundred seventy-two billion, two million, two hundred twenty-seven thousand, one hundred ninety-eight".