13220111322 has 48 divisors (see below), whose sum is σ = 32092081632. Its totient is φ = 3897819360.

The previous prime is 13220111287. The next prime is 13220111363. The reversal of 13220111322 is 22311102231.

13220111322 is a `hidden beast` number, since 13 + 220 + 111 + 322 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13220111295 and 13220111304.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 894948 + ... + 909599.

It is an arithmetic number, because the mean of its divisors is an integer number (668585034).

Almost surely, 2^13220111322 is an apocalyptic number.

13220111322 is an abundant number, since it is smaller than the sum of its proper divisors (18871970310).

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

13220111322 is a wasteful number, since it uses less digits than its factorization.

13220111322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804603 (or 1804600 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 13220111322 its reverse (22311102231), we get a palindrome (35531213553).

Subtracting 13220111322 from its reverse (22311102231), we obtain a palindrome (9090990909).

The spelling of 13220111322 in words is "thirteen billion, two hundred twenty million, one hundred eleven thousand, three hundred twenty-two".