20112122120011 has 2 divisors, whose sum is σ = 20112122120012. Its totient is φ = 20112122120010.

The previous prime is 20112122119987. The next prime is 20112122120039. The reversal of 20112122120011 is 11002122121102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20112122120011 - 2⁷ = 20112122119883 is a prime.

It is a super-2 number, since 2×20112122120011² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20112122120611) 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, 10056061060005 + 10056061060006.

It is an arithmetic number, because the mean of its divisors is an integer number (10056061060006).

Almost surely, 2^{20112122120011} is an apocalyptic number.

20112122120011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112122120011 is an equidigital number, since it uses as much as digits as its factorization.

20112122120011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20112122120011 its reverse (11002122121102), we get a palindrome (31114244241113).

The spelling of 20112122120011 in words is "twenty trillion, one hundred twelve billion, one hundred twenty-two million, one hundred twenty thousand, eleven".