13220222009 has 2 divisors, whose sum is σ = 13220222010. Its totient is φ = 13220222008.

The previous prime is 13220221991. The next prime is 13220222077. The reversal of 13220222009 is 90022202231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10000000000 + 3220222009 = 100000^2 + 56747^2 .

It is a cyclic number.

It is not a de Polignac number, because 13220222009 - 2¹⁶ = 13220156473 is a prime.

It is not a weakly prime, because it can be changed into another prime (13220222089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610111004 + 6610111005.

It is an arithmetic number, because the mean of its divisors is an integer number (6610111005).

Almost surely, 2^13220222009 is an apocalyptic number.

It is an amenable number.

13220222009 is a deficient number, since it is larger than the sum of its proper divisors (1).

13220222009 is an equidigital number, since it uses as much as digits as its factorization.

13220222009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

It can be divided in two parts, 13 and 220222009, that added together give a palindrome (220222022).

The spelling of 13220222009 in words is "thirteen billion, two hundred twenty million, two hundred twenty-two thousand, nine".