121512060512069 has 2 divisors, whose sum is σ = 121512060512070. Its totient is φ = 121512060512068.

The previous prime is 121512060512047. The next prime is 121512060512107. The reversal of 121512060512069 is 960215060215121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83036526303844 + 38475534208225 = 9112438^2 + 6202865^2 .

It is a cyclic number.

It is not a de Polignac number, because 121512060512069 - 2¹² = 121512060507973 is a prime.

It is a super-2 number, since 2×121512060512069² (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 (121512060712069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60756030256034 + 60756030256035.

It is an arithmetic number, because the mean of its divisors is an integer number (60756030256035).

Almost surely, 2^{121512060512069} is an apocalyptic number.

It is an amenable number.

121512060512069 is a deficient number, since it is larger than the sum of its proper divisors (1).

121512060512069 is an equidigital number, since it uses as much as digits as its factorization.

121512060512069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 41.

The spelling of 121512060512069 in words is "one hundred twenty-one trillion, five hundred twelve billion, sixty million, five hundred twelve thousand, sixty-nine".