9901111101 has 16 divisors (see below), whose sum is σ = 15372077184. Its totient is φ = 5551026624.

The previous prime is 9901111091. The next prime is 9901111123. The reversal of 9901111101 is 1011111099.

It is not a de Polignac number, because 9901111101 - 2⁶ = 9901111037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9901111141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4446826 + ... + 4449051.

It is an arithmetic number, because the mean of its divisors is an integer number (960754824).

Almost surely, 2^9901111101 is an apocalyptic number.

It is an amenable number.

9901111101 is a deficient number, since it is larger than the sum of its proper divisors (5470966083).

9901111101 is a wasteful number, since it uses less digits than its factorization.

9901111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8895940.

The product of its (nonzero) digits is 81, while the sum is 24.

The square root of 9901111101 is about 99504.3270466164. The cubic root of 9901111101 is about 2147.3094955923.

The spelling of 9901111101 in words is "nine billion, nine hundred one million, one hundred eleven thousand, one hundred one".