32221221222313 has 2 divisors, whose sum is σ = 32221221222314. Its totient is φ = 32221221222312.

The previous prime is 32221221222299. The next prime is 32221221222347. The reversal of 32221221222313 is 31322212212223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31850762747904 + 370458474409 = 5643648^2 + 608653^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32221221222313 is a prime.

It is not a weakly prime, because it can be changed into another prime (32221221222413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16110610611156 + 16110610611157.

It is an arithmetic number, because the mean of its divisors is an integer number (16110610611157).

Almost surely, 2^{32221221222313} is an apocalyptic number.

It is an amenable number.

32221221222313 is a deficient number, since it is larger than the sum of its proper divisors (1).

32221221222313 is an equidigital number, since it uses as much as digits as its factorization.

32221221222313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 28.

Adding to 32221221222313 its reverse (31322212212223), we get a palindrome (63543433434536).

The spelling of 32221221222313 in words is "thirty-two trillion, two hundred twenty-one billion, two hundred twenty-one million, two hundred twenty-two thousand, three hundred thirteen".