20102221004011 has 2 divisors, whose sum is σ = 20102221004012. Its totient is φ = 20102221004010.

The previous prime is 20102221003927. The next prime is 20102221004017. The reversal of 20102221004011 is 11040012220102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20102221004011 - 2¹⁹ = 20102220479723 is a prime.

It is not a weakly prime, because it can be changed into another prime (20102221004017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051110502005 + 10051110502006.

It is an arithmetic number, because the mean of its divisors is an integer number (10051110502006).

Almost surely, 2^{20102221004011} is an apocalyptic number.

20102221004011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102221004011 is an equidigital number, since it uses as much as digits as its factorization.

20102221004011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20102221004011 its reverse (11040012220102), we get a palindrome (31142233224113).

The spelling of 20102221004011 in words is "twenty trillion, one hundred two billion, two hundred twenty-one million, four thousand, eleven".