121210000097 has 2 divisors, whose sum is σ = 121210000098. Its totient is φ = 121210000096.

The previous prime is 121210000081. The next prime is 121210000151. The reversal of 121210000097 is 790000012121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101317436416 + 19892563681 = 318304^2 + 141041^2 .

It is an emirp because it is prime and its reverse (790000012121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121210000097 - 2⁴ = 121210000081 is a prime.

It is not a weakly prime, because it can be changed into another prime (121210000297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60605000048 + 60605000049.

It is an arithmetic number, because the mean of its divisors is an integer number (60605000049).

Almost surely, 2^121210000097 is an apocalyptic number.

It is an amenable number.

121210000097 is a deficient number, since it is larger than the sum of its proper divisors (1).

121210000097 is an equidigital number, since it uses as much as digits as its factorization.

121210000097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 23.

The spelling of 121210000097 in words is "one hundred twenty-one billion, two hundred ten million, ninety-seven", and thus it is an aban number.