100120209498 has 12 divisors (see below), whose sum is σ = 216927120618. Its totient is φ = 33373403160.

The previous prime is 100120209443. The next prime is 100120209499. The reversal of 100120209498 is 894902021001.

It can be written as a sum of positive squares in only one way, i.e., 62748747009 + 37371462489 = 250497^2 + 193317^2 .

It is not an unprimeable number, because it can be changed into a prime (100120209499) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2781116913 + ... + 2781116948.

Almost surely, 2^100120209498 is an apocalyptic number.

100120209498 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

100120209498 is an abundant number, since it is smaller than the sum of its proper divisors (116806911120).

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

100120209498 is a wasteful number, since it uses less digits than its factorization.

100120209498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5562233869 (or 5562233866 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The spelling of 100120209498 in words is "one hundred billion, one hundred twenty million, two hundred nine thousand, four hundred ninety-eight".