13212222303331 has 2 divisors, whose sum is σ = 13212222303332. Its totient is φ = 13212222303330.

The previous prime is 13212222303263. The next prime is 13212222303373. The reversal of 13212222303331 is 13330322221231.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13212222303331 - 2²³ = 13212213914723 is a prime.

It is a super-2 number, since 2×13212222303331² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13212222303331.

It is not a weakly prime, because it can be changed into another prime (13212222303431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6606111151665 + 6606111151666.

It is an arithmetic number, because the mean of its divisors is an integer number (6606111151666).

Almost surely, 2^{13212222303331} is an apocalyptic number.

13212222303331 is a deficient number, since it is larger than the sum of its proper divisors (1).

13212222303331 is an equidigital number, since it uses as much as digits as its factorization.

13212222303331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 13212222303331 its reverse (13330322221231), we get a palindrome (26542544524562).

The spelling of 13212222303331 in words is "thirteen trillion, two hundred twelve billion, two hundred twenty-two million, three hundred three thousand, three hundred thirty-one".