13220334420 has 24 divisors (see below), whose sum is σ = 37016936544. Its totient is φ = 3525422496.

The previous prime is 13220334419. The next prime is 13220334497. The reversal of 13220334420 is 2443302231.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 110169394 + ... + 110169513.

It is an arithmetic number, because the mean of its divisors is an integer number (1542372356).

Almost surely, 2^13220334420 is an apocalyptic number.

13220334420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13220334420 is an abundant number, since it is smaller than the sum of its proper divisors (23796602124).

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

13220334420 is a wasteful number, since it uses less digits than its factorization.

13220334420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220338919 (or 220338917 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 13220334420 its reverse (2443302231), we get a palindrome (15663636651).

The spelling of 13220334420 in words is "thirteen billion, two hundred twenty million, three hundred thirty-four thousand, four hundred twenty".