121342222243079 has 2 divisors, whose sum is σ = 121342222243080. Its totient is φ = 121342222243078.

The previous prime is 121342222243049. The next prime is 121342222243097. The reversal of 121342222243079 is 970342222243121.

Together with next prime (121342222243097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121342222243079 - 2²⁰ = 121342221194503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121342222243009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60671111121539 + 60671111121540.

It is an arithmetic number, because the mean of its divisors is an integer number (60671111121540).

Almost surely, 2^{121342222243079} is an apocalyptic number.

121342222243079 is a deficient number, since it is larger than the sum of its proper divisors (1).

121342222243079 is an equidigital number, since it uses as much as digits as its factorization.

121342222243079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 44.

The spelling of 121342222243079 in words is "one hundred twenty-one trillion, three hundred forty-two billion, two hundred twenty-two million, two hundred forty-three thousand, seventy-nine".