9010121 has 2 divisors, whose sum is σ = 9010122. Its totient is φ = 9010120.

The previous prime is 9010103. The next prime is 9010139. The reversal of 9010121 is 1210109.

It is a balanced prime because it is at equal distance from previous prime (9010103) and next prime (9010139).

It can be written as a sum of positive squares in only one way, i.e., 5456896 + 3553225 = 2336^2 + 1885^2 .

It is a cyclic number.

It is not a de Polignac number, because 9010121 - 2¹⁴ = 8993737 is a prime.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9010096 and 9010105.

It is not a weakly prime, because it can be changed into another prime (9012121) 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, 4505060 + 4505061.

It is an arithmetic number, because the mean of its divisors is an integer number (4505061).

Almost surely, 2^9010121 is an apocalyptic number.

It is an amenable number.

9010121 is a deficient number, since it is larger than the sum of its proper divisors (1).

9010121 is an equidigital number, since it uses as much as digits as its factorization.

9010121 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 9010121 is about 3001.6863593653. The cubic root of 9010121 is about 208.0863254227.

The spelling of 9010121 in words is "nine million, ten thousand, one hundred twenty-one".