9900101 has 2 divisors, whose sum is σ = 9900102. Its totient is φ = 9900100.

The previous prime is 9900091. The next prime is 9900113. The reversal of 9900101 is 1010099.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5635876 + 4264225 = 2374^2 + 2065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9900101 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9900161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4950050 + 4950051.

It is an arithmetic number, because the mean of its divisors is an integer number (4950051).

Almost surely, 2^9900101 is an apocalyptic number.

It is an amenable number.

9900101 is a deficient number, since it is larger than the sum of its proper divisors (1).

9900101 is an equidigital number, since it uses as much as digits as its factorization.

9900101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81, while the sum is 20.

The square root of 9900101 is about 3146.4425944231. The cubic root of 9900101 is about 214.7236471019.

It can be divided in two parts, 9900 and 101, that added together give a palindrome (10001).

The spelling of 9900101 in words is "nine million, nine hundred thousand, one hundred one".