121026266122129 has 2 divisors, whose sum is σ = 121026266122130. Its totient is φ = 121026266122128.

The previous prime is 121026266122081. The next prime is 121026266122271. The reversal of 121026266122129 is 921221662620121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113268659700625 + 7757606421504 = 10642775^2 + 2785248^2 .

It is a cyclic number.

It is not a de Polignac number, because 121026266122129 - 2¹³ = 121026266113937 is a prime.

It is not a weakly prime, because it can be changed into another prime (121026266122829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60513133061064 + 60513133061065.

It is an arithmetic number, because the mean of its divisors is an integer number (60513133061065).

Almost surely, 2^{121026266122129} is an apocalyptic number.

It is an amenable number.

121026266122129 is a deficient number, since it is larger than the sum of its proper divisors (1).

121026266122129 is an equidigital number, since it uses as much as digits as its factorization.

121026266122129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 121026266122129 in words is "one hundred twenty-one trillion, twenty-six billion, two hundred sixty-six million, one hundred twenty-two thousand, one hundred twenty-nine".