100197208998 has 24 divisors (see below), whose sum is σ = 219122872488. Its totient is φ = 33086928192.

The previous prime is 100197208997. The next prime is 100197208999. The reversal of 100197208998 is 899802791001.

It is an interprime number because it is at equal distance from previous prime (100197208997) and next prime (100197208999).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100197208997) 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 in 11 ways as a sum of consecutive naturals, for example, 26009811 + ... + 26013662.

It is an arithmetic number, because the mean of its divisors is an integer number (9130119687).

Almost surely, 2^100197208998 is an apocalyptic number.

100197208998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

100197208998 is an abundant number, since it is smaller than the sum of its proper divisors (118925663490).

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

100197208998 is a wasteful number, since it uses less digits than its factorization.

100197208998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52023588 (or 52023585 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 54.

Adding to 100197208998 its reverse (899802791001), we get a palindrome (999999999999).

The spelling of 100197208998 in words is "one hundred billion, one hundred ninety-seven million, two hundred eight thousand, nine hundred ninety-eight".