21322121210011 has 2 divisors, whose sum is σ = 21322121210012. Its totient is φ = 21322121210010.

The previous prime is 21322121209997. The next prime is 21322121210083. The reversal of 21322121210011 is 11001212122312.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21322121210011 is a prime.

It is not a weakly prime, because it can be changed into another prime (21322121210111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10661060605005 + 10661060605006.

It is an arithmetic number, because the mean of its divisors is an integer number (10661060605006).

Almost surely, 2^{21322121210011} is an apocalyptic number.

21322121210011 is a deficient number, since it is larger than the sum of its proper divisors (1).

21322121210011 is an equidigital number, since it uses as much as digits as its factorization.

21322121210011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 21322121210011 its reverse (11001212122312), we get a palindrome (32323333332323).

The spelling of 21322121210011 in words is "twenty-one trillion, three hundred twenty-two billion, one hundred twenty-one million, two hundred ten thousand, eleven".