99210101 has 2 divisors, whose sum is σ = 99210102. Its totient is φ = 99210100.

The previous prime is 99210053. The next prime is 99210103. The reversal of 99210101 is 10101299.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98208100 + 1002001 = 9910^2 + 1001^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99210101 is a prime.

Together with 99210103, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99210103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49605050 + 49605051.

It is an arithmetic number, because the mean of its divisors is an integer number (49605051).

Almost surely, 2^99210101 is an apocalyptic number.

It is an amenable number.

99210101 is a deficient number, since it is larger than the sum of its proper divisors (1).

99210101 is an equidigital number, since it uses as much as digits as its factorization.

99210101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 23.

The square root of 99210101 is about 9960.4267478859. The cubic root of 99210101 is about 462.9335225117.

The spelling of 99210101 in words is "ninety-nine million, two hundred ten thousand, one hundred one".