13522721300 has 72 divisors (see below), whose sum is σ = 32295557952. Its totient is φ = 4873792000.

The previous prime is 13522721279. The next prime is 13522721323. The reversal of 13522721300 is 312722531.

It is a self number, because there is not a number n which added to its sum of digits gives 13522721300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69905 + ... + 178695.

It is an arithmetic number, because the mean of its divisors is an integer number (448549416).

Almost surely, 2^13522721300 is an apocalyptic number.

13522721300 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 13522721300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16147778976).

13522721300 is an abundant number, since it is smaller than the sum of its proper divisors (18772836652).

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

13522721300 is a wasteful number, since it uses less digits than its factorization.

13522721300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108929 (or 108922 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The spelling of 13522721300 in words is "thirteen billion, five hundred twenty-two million, seven hundred twenty-one thousand, three hundred".