13221011300 has 216 divisors, whose sum is σ = 34986260736. Its totient is φ = 4247147520.

The previous prime is 13221011269. The next prime is 13221011339. The reversal of 13221011300 is 311012231.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 28554869 + ... + 28555331.

Almost surely, 2^13221011300 is an apocalyptic number.

13221011300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13221011300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17493130368).

13221011300 is an abundant number, since it is smaller than the sum of its proper divisors (21765249436).

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

13221011300 is a wasteful number, since it uses less digits than its factorization.

13221011300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635 (or 609 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 13221011300 its reverse (311012231), we get a palindrome (13532023531).

The spelling of 13221011300 in words is "thirteen billion, two hundred twenty-one million, eleven thousand, three hundred".