20102211122011 has 2 divisors, whose sum is σ = 20102211122012. Its totient is φ = 20102211122010.

The previous prime is 20102211121957. The next prime is 20102211122017. The reversal of 20102211122011 is 11022111220102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20102211122011 is a prime.

It is not a weakly prime, because it can be changed into another prime (20102211122017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051105561005 + 10051105561006.

It is an arithmetic number, because the mean of its divisors is an integer number (10051105561006).

Almost surely, 2^{20102211122011} is an apocalyptic number.

20102211122011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102211122011 is an equidigital number, since it uses as much as digits as its factorization.

20102211122011 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 20102211122011 its reverse (11022111220102), we get a palindrome (31124322342113).

The spelling of 20102211122011 in words is "twenty trillion, one hundred two billion, two hundred eleven million, one hundred twenty-two thousand, eleven".