20066206221011 has 2 divisors, whose sum is σ = 20066206221012. Its totient is φ = 20066206221010.

The previous prime is 20066206220989. The next prime is 20066206221023. The reversal of 20066206221011 is 11012260266002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20066206221011 - 2³⁰ = 20065132479187 is a prime.

It is not a weakly prime, because it can be changed into another prime (20066206221031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10033103110505 + 10033103110506.

It is an arithmetic number, because the mean of its divisors is an integer number (10033103110506).

Almost surely, 2^{20066206221011} is an apocalyptic number.

20066206221011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20066206221011 is an equidigital number, since it uses as much as digits as its factorization.

20066206221011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 20066206221011 its reverse (11012260266002), we get a palindrome (31078466487013).

The spelling of 20066206221011 in words is "twenty trillion, sixty-six billion, two hundred six million, two hundred twenty-one thousand, eleven".