1212421203079 has 2 divisors, whose sum is σ = 1212421203080. Its totient is φ = 1212421203078.

The previous prime is 1212421203013. The next prime is 1212421203107. The reversal of 1212421203079 is 9703021242121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212421203079 - 2¹¹ = 1212421201031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212421200079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606210601539 + 606210601540.

It is an arithmetic number, because the mean of its divisors is an integer number (606210601540).

Almost surely, 2^{1212421203079} is an apocalyptic number.

1212421203079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212421203079 is an equidigital number, since it uses as much as digits as its factorization.

1212421203079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The spelling of 1212421203079 in words is "one trillion, two hundred twelve billion, four hundred twenty-one million, two hundred three thousand, seventy-nine".