121412242057669 has 2 divisors, whose sum is σ = 121412242057670. Its totient is φ = 121412242057668.

The previous prime is 121412242057649. The next prime is 121412242057679. The reversal of 121412242057669 is 966750242214121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112393710528100 + 9018531529569 = 10601590^2 + 3003087^2 .

It is a cyclic number.

It is not a de Polignac number, because 121412242057669 - 2³³ = 121403652123077 is a prime.

It is a super-2 number, since 2×121412242057669² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121412242057649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60706121028834 + 60706121028835.

It is an arithmetic number, because the mean of its divisors is an integer number (60706121028835).

Almost surely, 2^{121412242057669} is an apocalyptic number.

It is an amenable number.

121412242057669 is a deficient number, since it is larger than the sum of its proper divisors (1).

121412242057669 is an equidigital number, since it uses as much as digits as its factorization.

121412242057669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 121412242057669 in words is "one hundred twenty-one trillion, four hundred twelve billion, two hundred forty-two million, fifty-seven thousand, six hundred sixty-nine".