13113222 has 32 divisors (see below), whose sum is σ = 28252800. Its totient is φ = 4042368.

The previous prime is 13113181. The next prime is 13113223. The reversal of 13113222 is 22231131.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13113223) 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, 4929 + ... + 7107.

It is an arithmetic number, because the mean of its divisors is an integer number (882900).

Almost surely, 2^13113222 is an apocalyptic number.

13113222 is an abundant number, since it is smaller than the sum of its proper divisors (15139578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13113222 is a wasteful number, since it uses less digits than its factorization.

13113222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2260.

The product of its digits is 72, while the sum is 15.

The square root of 13113222 is about 3621.2183032786. The cubic root of 13113222 is about 235.8141191697.

Adding to 13113222 its reverse (22231131), we get a palindrome (35344353).

The spelling of 13113222 in words is "thirteen million, one hundred thirteen thousand, two hundred twenty-two".