13220622 has 12 divisors (see below), whose sum is σ = 28644720. Its totient is φ = 4406868.

The previous prime is 13220609. The next prime is 13220629. The reversal of 13220622 is 22602231.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 734479 = 13220622 / (1 + 3 + 2 + 2 + 0 + 6 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 13220595 and 13220604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 367222 + ... + 367257.

It is an arithmetic number, because the mean of its divisors is an integer number (2387060).

Almost surely, 2^13220622 is an apocalyptic number.

13220622 is an abundant number, since it is smaller than the sum of its proper divisors (15424098).

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

13220622 is a wasteful number, since it uses less digits than its factorization.

13220622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734487 (or 734484 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 13220622 is about 3636.0173266914. The cubic root of 13220622 is about 236.4561583366.

Adding to 13220622 its reverse (22602231), we get a palindrome (35822853).

The spelling of 13220622 in words is "thirteen million, two hundred twenty thousand, six hundred twenty-two".