21202001010011 has 2 divisors, whose sum is σ = 21202001010012. Its totient is φ = 21202001010010.

The previous prime is 21202001009879. The next prime is 21202001010031. The reversal of 21202001010011 is 11001010020212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21202001010011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21202001009974 and 21202001010001.

It is not a weakly prime, because it can be changed into another prime (21202001010031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10601000505005 + 10601000505006.

It is an arithmetic number, because the mean of its divisors is an integer number (10601000505006).

Almost surely, 2^{21202001010011} is an apocalyptic number.

21202001010011 is a deficient number, since it is larger than the sum of its proper divisors (1).

21202001010011 is an equidigital number, since it uses as much as digits as its factorization.

21202001010011 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 11.

Adding to 21202001010011 its reverse (11001010020212), we get a palindrome (32203011030223).

The spelling of 21202001010011 in words is "twenty-one trillion, two hundred two billion, one million, ten thousand, eleven".