13220312227 has 2 divisors, whose sum is σ = 13220312228. Its totient is φ = 13220312226.

The previous prime is 13220312213. The next prime is 13220312249. The reversal of 13220312227 is 72221302231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13220312227 - 2¹⁵ = 13220279459 is a prime.

It is not a weakly prime, because it can be changed into another prime (13220312257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610156113 + 6610156114.

It is an arithmetic number, because the mean of its divisors is an integer number (6610156114).

Almost surely, 2^13220312227 is an apocalyptic number.

13220312227 is a deficient number, since it is larger than the sum of its proper divisors (1).

13220312227 is an equidigital number, since it uses as much as digits as its factorization.

13220312227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

Adding to 13220312227 its reverse (72221302231), we get a palindrome (85441614458).

The spelling of 13220312227 in words is "thirteen billion, two hundred twenty million, three hundred twelve thousand, two hundred twenty-seven".