13322212021 has 2 divisors, whose sum is σ = 13322212022. Its totient is φ = 13322212020.

The previous prime is 13322211997. The next prime is 13322212037. The reversal of 13322212021 is 12021222331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11933159121 + 1389052900 = 109239^2 + 37270^2 .

It is an emirp because it is prime and its reverse (12021222331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13322212021 - 2¹⁵ = 13322179253 is a prime.

It is a super-3 number, since 3×13322212021³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13322212021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13322212051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6661106010 + 6661106011.

It is an arithmetic number, because the mean of its divisors is an integer number (6661106011).

Almost surely, 2^13322212021 is an apocalyptic number.

It is an amenable number.

13322212021 is a deficient number, since it is larger than the sum of its proper divisors (1).

13322212021 is an equidigital number, since it uses as much as digits as its factorization.

13322212021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13322212021 its reverse (12021222331), we get a palindrome (25343434352).

The spelling of 13322212021 in words is "thirteen billion, three hundred twenty-two million, two hundred twelve thousand, twenty-one".