20012122209983 has 2 divisors, whose sum is σ = 20012122209984. Its totient is φ = 20012122209982.

The previous prime is 20012122209967. The next prime is 20012122210027. The reversal of 20012122209983 is 38990222121002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20012122209983 - 2⁴ = 20012122209967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20012122209983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20012122208983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006061104991 + 10006061104992.

It is an arithmetic number, because the mean of its divisors is an integer number (10006061104992).

Almost surely, 2^{20012122209983} is an apocalyptic number.

20012122209983 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012122209983 is an equidigital number, since it uses as much as digits as its factorization.

20012122209983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 20012122209983 in words is "twenty trillion, twelve billion, one hundred twenty-two million, two hundred nine thousand, nine hundred eighty-three".