21202200011 has 2 divisors, whose sum is σ = 21202200012. Its totient is φ = 21202200010.

The previous prime is 21202199981. The next prime is 21202200023. The reversal of 21202200011 is 11000220212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21202200011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21202199965 and 21202200001.

It is not a weakly prime, because it can be changed into another prime (21202200031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10601100005 + 10601100006.

It is an arithmetic number, because the mean of its divisors is an integer number (10601100006).

Almost surely, 2^21202200011 is an apocalyptic number.

21202200011 is a deficient number, since it is larger than the sum of its proper divisors (1).

21202200011 is an equidigital number, since it uses as much as digits as its factorization.

21202200011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 21202200011 its reverse (11000220212), we get a palindrome (32202420223).

The spelling of 21202200011 in words is "twenty-one billion, two hundred two million, two hundred thousand, eleven".