121010110120609 has 2 divisors, whose sum is σ = 121010110120610. Its totient is φ = 121010110120608.

The previous prime is 121010110120553. The next prime is 121010110120619. The reversal of 121010110120609 is 906021011010121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118839497230609 + 2170612890000 = 10901353^2 + 1473300^2 .

It is an emirp because it is prime and its reverse (906021011010121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121010110120609 - 2¹⁷ = 121010109989537 is a prime.

It is not a weakly prime, because it can be changed into another prime (121010110120619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505055060304 + 60505055060305.

It is an arithmetic number, because the mean of its divisors is an integer number (60505055060305).

Almost surely, 2^{121010110120609} is an apocalyptic number.

It is an amenable number.

121010110120609 is a deficient number, since it is larger than the sum of its proper divisors (1).

121010110120609 is an equidigital number, since it uses as much as digits as its factorization.

121010110120609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 25.

The spelling of 121010110120609 in words is "one hundred twenty-one trillion, ten billion, one hundred ten million, one hundred twenty thousand, six hundred nine".