13220323122 has 32 divisors (see below), whose sum is σ = 28104967872. Its totient is φ = 4131405824.

The previous prime is 13220323121. The next prime is 13220323153. The reversal of 13220323122 is 22132302231.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13220323121) 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, 225948 + ... + 278375.

It is an arithmetic number, because the mean of its divisors is an integer number (878280246).

Almost surely, 2^13220323122 is an apocalyptic number.

13220323122 is an abundant number, since it is smaller than the sum of its proper divisors (14884644750).

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

13220323122 is a wasteful number, since it uses less digits than its factorization.

13220323122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504602.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 13220323122 its reverse (22132302231), we get a palindrome (35352625353).

The spelling of 13220323122 in words is "thirteen billion, two hundred twenty million, three hundred twenty-three thousand, one hundred twenty-two".