7910121021097 has 2 divisors, whose sum is σ = 7910121021098. Its totient is φ = 7910121021096.

The previous prime is 7910121021073. The next prime is 7910121021109. The reversal of 7910121021097 is 7901201210197.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7886571356416 + 23549664681 = 2808304^2 + 153459^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7910121021097 is a prime.

It is not a weakly prime, because it can be changed into another prime (7910121021017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3955060510548 + 3955060510549.

It is an arithmetic number, because the mean of its divisors is an integer number (3955060510549).

Almost surely, 2^{7910121021097} is an apocalyptic number.

It is an amenable number.

7910121021097 is a deficient number, since it is larger than the sum of its proper divisors (1).

7910121021097 is an equidigital number, since it uses as much as digits as its factorization.

7910121021097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 40.

The spelling of 7910121021097 in words is "seven trillion, nine hundred ten billion, one hundred twenty-one million, twenty-one thousand, ninety-seven".