100020111198 has 64 divisors (see below), whose sum is σ = 232607808000. Its totient is φ = 28078856064.

The previous prime is 100020111181. The next prime is 100020111211. The reversal of 100020111198 is 891111020001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5613688 + ... + 5631476.

It is an arithmetic number, because the mean of its divisors is an integer number (3634497000).

Almost surely, 2^100020111198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100020111198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116303904000).

100020111198 is an abundant number, since it is smaller than the sum of its proper divisors (132587696802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100020111198 is a wasteful number, since it uses less digits than its factorization.

100020111198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20129.

The product of its (nonzero) digits is 144, while the sum is 24.

Adding to 100020111198 its reverse (891111020001), we get a palindrome (991131131199).

The spelling of 100020111198 in words is "one hundred billion, twenty million, one hundred eleven thousand, one hundred ninety-eight".