21332220012241 has 2 divisors, whose sum is σ = 21332220012242. Its totient is φ = 21332220012240.

The previous prime is 21332220012199. The next prime is 21332220012307. The reversal of 21332220012241 is 14221002223312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17552714643216 + 3779505369025 = 4189596^2 + 1944095^2 .

It is a cyclic number.

It is not a de Polignac number, because 21332220012241 - 2¹¹ = 21332220010193 is a prime.

It is a super-2 number, since 2×21332220012241² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21332220012841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10666110006120 + 10666110006121.

It is an arithmetic number, because the mean of its divisors is an integer number (10666110006121).

Almost surely, 2^{21332220012241} is an apocalyptic number.

It is an amenable number.

21332220012241 is a deficient number, since it is larger than the sum of its proper divisors (1).

21332220012241 is an equidigital number, since it uses as much as digits as its factorization.

21332220012241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 21332220012241 its reverse (14221002223312), we get a palindrome (35553222235553).

The spelling of 21332220012241 in words is "twenty-one trillion, three hundred thirty-two billion, two hundred twenty million, twelve thousand, two hundred forty-one".