20021110100011 has 2 divisors, whose sum is σ = 20021110100012. Its totient is φ = 20021110100010.

The previous prime is 20021110099981. The next prime is 20021110100039. The reversal of 20021110100011 is 11000101112002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20021110100011 - 2⁹ = 20021110099499 is a prime.

It is not a weakly prime, because it can be changed into another prime (20021110100041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010555050005 + 10010555050006.

It is an arithmetic number, because the mean of its divisors is an integer number (10010555050006).

Almost surely, 2^{20021110100011} is an apocalyptic number.

20021110100011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20021110100011 is an equidigital number, since it uses as much as digits as its factorization.

20021110100011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 20021110100011 its reverse (11000101112002), we get a palindrome (31021211212013).

The spelling of 20021110100011 in words is "twenty trillion, twenty-one billion, one hundred ten million, one hundred thousand, eleven".