9010201001 has 2 divisors, whose sum is σ = 9010201002. Its totient is φ = 9010201000.

The previous prime is 9010200973. The next prime is 9010201009. The reversal of 9010201001 is 1001020109.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4698965401 + 4311235600 = 68549^2 + 65660^2 .

It is an emirp because it is prime and its reverse (1001020109) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9010201001 - 2¹⁰ = 9010199977 is a prime.

It is not a weakly prime, because it can be changed into another prime (9010201009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4505100500 + 4505100501.

It is an arithmetic number, because the mean of its divisors is an integer number (4505100501).

Almost surely, 2^9010201001 is an apocalyptic number.

It is an amenable number.

9010201001 is a deficient number, since it is larger than the sum of its proper divisors (1).

9010201001 is an equidigital number, since it uses as much as digits as its factorization.

9010201001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 9010201001 is about 94922.0785750080. The cubic root of 9010201001 is about 2080.8694128806.

The spelling of 9010201001 in words is "nine billion, ten million, two hundred one thousand, one".