20020122079 has 2 divisors, whose sum is σ = 20020122080. Its totient is φ = 20020122078.

The previous prime is 20020122071. The next prime is 20020122091. The reversal of 20020122079 is 97022102002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20020122079 - 2³ = 20020122071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20020122071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010061039 + 10010061040.

It is an arithmetic number, because the mean of its divisors is an integer number (10010061040).

Almost surely, 2^20020122079 is an apocalyptic number.

20020122079 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020122079 is an equidigital number, since it uses as much as digits as its factorization.

20020122079 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 20020122079 in words is "twenty billion, twenty million, one hundred twenty-two thousand, seventy-nine".