13330221332237 has 2 divisors, whose sum is σ = 13330221332238. Its totient is φ = 13330221332236.

The previous prime is 13330221332209. The next prime is 13330221332243. The reversal of 13330221332237 is 73223312203331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12577953064681 + 752268267556 = 3546541^2 + 867334^2 .

It is a cyclic number.

It is not a de Polignac number, because 13330221332237 - 2¹⁶ = 13330221266701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13330221332197 and 13330221332206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13330221332287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6665110666118 + 6665110666119.

It is an arithmetic number, because the mean of its divisors is an integer number (6665110666119).

Almost surely, 2^{13330221332237} is an apocalyptic number.

It is an amenable number.

13330221332237 is a deficient number, since it is larger than the sum of its proper divisors (1).

13330221332237 is an equidigital number, since it uses as much as digits as its factorization.

13330221332237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 35.

Adding to 13330221332237 its reverse (73223312203331), we get a palindrome (86553533535568).

The spelling of 13330221332237 in words is "thirteen trillion, three hundred thirty billion, two hundred twenty-one million, three hundred thirty-two thousand, two hundred thirty-seven".