20001112212079 has 2 divisors, whose sum is σ = 20001112212080. Its totient is φ = 20001112212078.

The previous prime is 20001112212077. The next prime is 20001112212101. The reversal of 20001112212079 is 97021221110002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20001112212079 - 2¹ = 20001112212077 is a prime.

Together with 20001112212077, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20001112212073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000556106039 + 10000556106040.

It is an arithmetic number, because the mean of its divisors is an integer number (10000556106040).

Almost surely, 2^{20001112212079} is an apocalyptic number.

20001112212079 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001112212079 is an equidigital number, since it uses as much as digits as its factorization.

20001112212079 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 28.

The spelling of 20001112212079 in words is "twenty trillion, one billion, one hundred twelve million, two hundred twelve thousand, seventy-nine".