13220011213 has 2 divisors, whose sum is σ = 13220011214. Its totient is φ = 13220011212.

The previous prime is 13220011171. The next prime is 13220011229. The reversal of 13220011213 is 31211002231.

It is an a-pointer prime, because the next prime (13220011229) can be obtained adding 13220011213 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11235576004 + 1984435209 = 105998^2 + 44547^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13220011213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13220011283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610005606 + 6610005607.

It is an arithmetic number, because the mean of its divisors is an integer number (6610005607).

Almost surely, 2^13220011213 is an apocalyptic number.

It is an amenable number.

13220011213 is a deficient number, since it is larger than the sum of its proper divisors (1).

13220011213 is an equidigital number, since it uses as much as digits as its factorization.

13220011213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 13220011213 its reverse (31211002231), we get a palindrome (44431013444).

The spelling of 13220011213 in words is "thirteen billion, two hundred twenty million, eleven thousand, two hundred thirteen".