13222811 has 16 divisors (see below), whose sum is σ = 15940800. Its totient is φ = 10727808.

The previous prime is 13222789. The next prime is 13222823. The reversal of 13222811 is 11822231.

It is not a de Polignac number, because 13222811 - 2²² = 9028507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13222871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10145 + ... + 11373.

It is an arithmetic number, because the mean of its divisors is an integer number (996300).

Almost surely, 2^13222811 is an apocalyptic number.

13222811 is a deficient number, since it is larger than the sum of its proper divisors (2717989).

13222811 is a wasteful number, since it uses less digits than its factorization.

13222811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318.

The product of its digits is 192, while the sum is 20.

The square root of 13222811 is about 3636.3183303996. The cubic root of 13222811 is about 236.4692079991.

The spelling of 13222811 in words is "thirteen million, two hundred twenty-two thousand, eight hundred eleven".