9999011101 has 8 divisors (see below), whose sum is σ = 10040155704. Its totient is φ = 9957903360.

The previous prime is 9999011083. The next prime is 9999011131. The reversal of 9999011101 is 1011109999.

It can be written as a sum of positive squares in 4 ways, for example, as 4184796100 + 5814215001 = 64690^2 + 76251^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9999011101 - 2⁹ = 9999010589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999011131) 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, 621681 + ... + 637561.

It is an arithmetic number, because the mean of its divisors is an integer number (1255019463).

Almost surely, 2^9999011101 is an apocalyptic number.

It is an amenable number.

9999011101 is a deficient number, since it is larger than the sum of its proper divisors (41144603).

9999011101 is a wasteful number, since it uses less digits than its factorization.

9999011101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18431.

The product of its (nonzero) digits is 6561, while the sum is 40.

The square root of 9999011101 is about 99995.0553827538. The cubic root of 9999011101 is about 2154.3636704138.

The spelling of 9999011101 in words is "nine billion, nine hundred ninety-nine million, eleven thousand, one hundred one".