21230033222011 has 2 divisors, whose sum is σ = 21230033222012. Its totient is φ = 21230033222010.

The previous prime is 21230033222009. The next prime is 21230033222053. The reversal of 21230033222011 is 11022233003212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21230033222011 - 2¹ = 21230033222009 is a prime.

Together with 21230033222009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (21230033222081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10615016611005 + 10615016611006.

It is an arithmetic number, because the mean of its divisors is an integer number (10615016611006).

Almost surely, 2^{21230033222011} is an apocalyptic number.

21230033222011 is a deficient number, since it is larger than the sum of its proper divisors (1).

21230033222011 is an equidigital number, since it uses as much as digits as its factorization.

21230033222011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21230033222011 its reverse (11022233003212), we get a palindrome (32252266225223).

The spelling of 21230033222011 in words is "twenty-one trillion, two hundred thirty billion, thirty-three million, two hundred twenty-two thousand, eleven".