13221335980 has 12 divisors (see below), whose sum is σ = 27764805600. Its totient is φ = 5288534384.

The previous prime is 13221335977. The next prime is 13221335983. The reversal of 13221335980 is 8953312231.

It is an interprime number because it is at equal distance from previous prime (13221335977) and next prime (13221335983).

It is not an unprimeable number, because it can be changed into a prime (13221335983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330533380 + ... + 330533419.

It is an arithmetic number, because the mean of its divisors is an integer number (2313733800).

Almost surely, 2^13221335980 is an apocalyptic number.

13221335980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13221335980 is an abundant number, since it is smaller than the sum of its proper divisors (14543469620).

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

13221335980 is a wasteful number, since it uses less digits than its factorization.

13221335980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661066808 (or 661066806 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 13221335980 in words is "thirteen billion, two hundred twenty-one million, three hundred thirty-five thousand, nine hundred eighty".