7000121 has 2 divisors, whose sum is σ = 7000122. Its totient is φ = 7000120.

The previous prime is 7000109. The next prime is 7000127. The reversal of 7000121 is 1210007.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6996025 + 4096 = 2645^2 + 64^2 .

It is a cyclic number.

It is not a de Polignac number, because 7000121 - 2⁶ = 7000057 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (7000127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3500060 + 3500061.

It is an arithmetic number, because the mean of its divisors is an integer number (3500061).

Almost surely, 2^7000121 is an apocalyptic number.

It is an amenable number.

7000121 is a deficient number, since it is larger than the sum of its proper divisors (1).

7000121 is an equidigital number, since it uses as much as digits as its factorization.

7000121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14, while the sum is 11.

The square root of 7000121 is about 2645.7741778164. The cubic root of 7000121 is about 191.2942204836.

Adding to 7000121 its reverse (1210007), we get a palindrome (8210128).

The spelling of 7000121 in words is "seven million, one hundred twenty-one", and thus it is an aban number.