121221010210093 has 2 divisors, whose sum is σ = 121221010210094. Its totient is φ = 121221010210092.

The previous prime is 121221010210081. The next prime is 121221010210121. The reversal of 121221010210093 is 390012010122121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67777629202089 + 53443381008004 = 8232717^2 + 7310498^2 .

It is a cyclic number.

It is not a de Polignac number, because 121221010210093 - 2³³ = 121212420275501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121221010210073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60610505105046 + 60610505105047.

It is an arithmetic number, because the mean of its divisors is an integer number (60610505105047).

Almost surely, 2^{121221010210093} is an apocalyptic number.

It is an amenable number.

121221010210093 is a deficient number, since it is larger than the sum of its proper divisors (1).

121221010210093 is an equidigital number, since it uses as much as digits as its factorization.

121221010210093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 121221010210093 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, ten million, two hundred ten thousand, ninety-three".