13220122340 has 48 divisors (see below), whose sum is σ = 27967306752. Its totient is φ = 5249118336.

The previous prime is 13220122339. The next prime is 13220122343. The reversal of 13220122340 is 4322102231.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (13220122343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1820597 + ... + 1827843.

It is an arithmetic number, because the mean of its divisors is an integer number (582652224).

Almost surely, 2^13220122340 is an apocalyptic number.

13220122340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13220122340 is an abundant number, since it is smaller than the sum of its proper divisors (14747184412).

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

13220122340 is a wasteful number, since it uses less digits than its factorization.

13220122340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7916 (or 7914 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 13220122340 its reverse (4322102231), we get a palindrome (17542224571).

The spelling of 13220122340 in words is "thirteen billion, two hundred twenty million, one hundred twenty-two thousand, three hundred forty".