13222031 has 2 divisors, whose sum is σ = 13222032. Its totient is φ = 13222030.

The previous prime is 13221997. The next prime is 13222037. The reversal of 13222031 is 13022231.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (13022231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13222031 - 2¹⁰ = 13221007 is a prime.

It is a super-2 number, since 2×13222031² = 349644207529922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13221997 and 13222015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13222037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6611015 + 6611016.

It is an arithmetic number, because the mean of its divisors is an integer number (6611016).

Almost surely, 2^13222031 is an apocalyptic number.

13222031 is a deficient number, since it is larger than the sum of its proper divisors (1).

13222031 is an equidigital number, since it uses as much as digits as its factorization.

13222031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 13222031 is about 3636.2110774816. The cubic root of 13222031 is about 236.4645582160.

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

It can be divided in two parts, 132 and 22031, that multiplied together give a palindrome (2908092).

The spelling of 13222031 in words is "thirteen million, two hundred twenty-two thousand, thirty-one".