20102211111011 has 2 divisors, whose sum is σ = 20102211111012. Its totient is φ = 20102211111010.

The previous prime is 20102211110939. The next prime is 20102211111049. The reversal of 20102211111011 is 11011111220102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20102211111011 - 2²⁶ = 20102144002147 is a prime.

It is not a weakly prime, because it can be changed into another prime (20102211111211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051105555505 + 10051105555506.

It is an arithmetic number, because the mean of its divisors is an integer number (10051105555506).

Almost surely, 2^{20102211111011} is an apocalyptic number.

20102211111011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102211111011 is an equidigital number, since it uses as much as digits as its factorization.

20102211111011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 20102211111011 its reverse (11011111220102), we get a palindrome (31113322331113).

The spelling of 20102211111011 in words is "twenty trillion, one hundred two billion, two hundred eleven million, one hundred eleven thousand, eleven".