1220002020079 has 2 divisors, whose sum is σ = 1220002020080. Its totient is φ = 1220002020078.

The previous prime is 1220002020049. The next prime is 1220002020091. The reversal of 1220002020079 is 9700202000221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1220002020079 - 2¹³ = 1220002011887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220002020049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610001010039 + 610001010040.

It is an arithmetic number, because the mean of its divisors is an integer number (610001010040).

Almost surely, 2^{1220002020079} is an apocalyptic number.

1220002020079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220002020079 is an equidigital number, since it uses as much as digits as its factorization.

1220002020079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The spelling of 1220002020079 in words is "one trillion, two hundred twenty billion, two million, twenty thousand, seventy-nine".