100122018017798 has 32 divisors (see below), whose sum is σ = 173570443444800. Its totient is φ = 42426284972544.

The previous prime is 100122018017797. The next prime is 100122018017837. The reversal of 100122018017798 is 897710810221001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100122018017797) 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 15 ways as a sum of consecutive naturals, for example, 51894236 + ... + 53788992.

It is an arithmetic number, because the mean of its divisors is an integer number (5424076357650).

Almost surely, 2^{100122018017798} is an apocalyptic number.

100122018017798 is a deficient number, since it is larger than the sum of its proper divisors (73448425427002).

100122018017798 is a wasteful number, since it uses less digits than its factorization.

100122018017798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937264.

The product of its (nonzero) digits is 112896, while the sum is 47.

Adding to 100122018017798 its reverse (897710810221001), we get a palindrome (997832828238799).

The spelling of 100122018017798 in words is "one hundred trillion, one hundred twenty-two billion, eighteen million, seventeen thousand, seven hundred ninety-eight".