13221255048 has 64 divisors (see below), whose sum is σ = 34681046400. Its totient is φ = 4192151040.

The previous prime is 13221255037. The next prime is 13221255067. The reversal of 13221255048 is 84055212231.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 33748 + ... + 166076.

It is an arithmetic number, because the mean of its divisors is an integer number (541891350).

Almost surely, 2^13221255048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13221255048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17340523200).

13221255048 is an abundant number, since it is smaller than the sum of its proper divisors (21459791352).

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

13221255048 is a wasteful number, since it uses less digits than its factorization.

13221255048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132542 (or 132538 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

Adding to 13221255048 its reverse (84055212231), we get a palindrome (97276467279).

The spelling of 13221255048 in words is "thirteen billion, two hundred twenty-one million, two hundred fifty-five thousand, forty-eight".