9901010101098 has 16 divisors (see below), whose sum is σ = 19802281697856. Its totient is φ = 3300293117760.

The previous prime is 9901010101097. The next prime is 9901010101139. The reversal of 9901010101098 is 8901010101099.

It is a super-3 number, since 3×9901010101098³ (a number of 40 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (9901010101091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10401711 + ... + 11313602.

It is an arithmetic number, because the mean of its divisors is an integer number (1237642606116).

Almost surely, 2^{9901010101098} is an apocalyptic number.

9901010101098 is an abundant number, since it is smaller than the sum of its proper divisors (9901271596758).

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

9901010101098 is a wasteful number, since it uses less digits than its factorization.

9901010101098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21791309.

The product of its (nonzero) digits is 5832, while the sum is 39.

Subtracting from 9901010101098 its reverse (8901010101099), we obtain a palindrome (999999999999).

The spelling of 9901010101098 in words is "nine trillion, nine hundred one billion, ten million, one hundred one thousand, ninety-eight".