13221021101011 has 2 divisors, whose sum is σ = 13221021101012. Its totient is φ = 13221021101010.

The previous prime is 13221021100981. The next prime is 13221021101033. The reversal of 13221021101011 is 11010112012231.

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-13221021101011 is a prime.

It is a super-2 number, since 2×13221021101011² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13221021101311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610510550505 + 6610510550506.

It is an arithmetic number, because the mean of its divisors is an integer number (6610510550506).

Almost surely, 2^{13221021101011} is an apocalyptic number.

13221021101011 is a deficient number, since it is larger than the sum of its proper divisors (1).

13221021101011 is an equidigital number, since it uses as much as digits as its factorization.

13221021101011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 13221021101011 its reverse (11010112012231), we get a palindrome (24231133113242).

The spelling of 13221021101011 in words is "thirteen trillion, two hundred twenty-one billion, twenty-one million, one hundred one thousand, eleven".