20021002011079 has 2 divisors, whose sum is σ = 20021002011080. Its totient is φ = 20021002011078.

The previous prime is 20021002011047. The next prime is 20021002011137. The reversal of 20021002011079 is 97011020012002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20021002011079 - 2⁵ = 20021002011047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20021002011779) 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, 10010501005539 + 10010501005540.

It is an arithmetic number, because the mean of its divisors is an integer number (10010501005540).

Almost surely, 2^{20021002011079} is an apocalyptic number.

20021002011079 is a deficient number, since it is larger than the sum of its proper divisors (1).

20021002011079 is an equidigital number, since it uses as much as digits as its factorization.

20021002011079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

The spelling of 20021002011079 in words is "twenty trillion, twenty-one billion, two million, eleven thousand, seventy-nine".