9999100101 has 4 divisors (see below), whose sum is σ = 13332133472. Its totient is φ = 6666066732.

The previous prime is 9999100093. The next prime is 9999100157. The reversal of 9999100101 is 1010019999.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 9999100101 - 2³ = 9999100093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9999100101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999100801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1666516681 + ... + 1666516686.

It is an arithmetic number, because the mean of its divisors is an integer number (3333033368).

Almost surely, 2^9999100101 is an apocalyptic number.

It is an amenable number.

9999100101 is a deficient number, since it is larger than the sum of its proper divisors (3333033371).

9999100101 is a wasteful number, since it uses less digits than its factorization.

9999100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3333033370.

The product of its (nonzero) digits is 6561, while the sum is 39.

The square root of 9999100101 is about 99995.5004037682. The cubic root of 9999100101 is about 2154.3700623058.

The spelling of 9999100101 in words is "nine billion, nine hundred ninety-nine million, one hundred thousand, one hundred one".