13022231 has 2 divisors, whose sum is σ = 13022232. Its totient is φ = 13022230.

The previous prime is 13022171. The next prime is 13022257. The reversal of 13022231 is 13222031.

It is a happy number.

13022231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (13222031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13022231 - 2¹⁰ = 13021207 is a prime.

It is a super-2 number, since 2×13022231² = 339157000434722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13022831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6511115 + 6511116.

It is an arithmetic number, because the mean of its divisors is an integer number (6511116).

Almost surely, 2^13022231 is an apocalyptic number.

13022231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13022231 is an equidigital number, since it uses as much as digits as its factorization.

13022231 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 14.

The square root of 13022231 is about 3608.6328436127. The cubic root of 13022231 is about 235.2674245491.

Adding to 13022231 its reverse (13222031), we get a palindrome (26244262).

The spelling of 13022231 in words is "thirteen million, twenty-two thousand, two hundred thirty-one".