13222213 has 16 divisors (see below), whose sum is σ = 14257152. Its totient is φ = 12240000.

The previous prime is 13222207. The next prime is 13222229. The reversal of 13222213 is 31222231.

It is a cyclic number.

It is not a de Polignac number, because 13222213 - 2¹³ = 13214021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13222273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128320 + ... + 128422.

It is an arithmetic number, because the mean of its divisors is an integer number (891072).

Almost surely, 2^13222213 is an apocalyptic number.

It is an amenable number.

13222213 is a deficient number, since it is larger than the sum of its proper divisors (1034939).

13222213 is a wasteful number, since it uses less digits than its factorization.

13222213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276.

The product of its digits is 144, while the sum is 16.

The square root of 13222213 is about 3636.2361034454. The cubic root of 13222213 is about 236.4656431817.

Adding to 13222213 its reverse (31222231), we get a palindrome (44444444).

The spelling of 13222213 in words is "thirteen million, two hundred twenty-two thousand, two hundred thirteen".