13221130032000 has 768 divisors, whose sum is σ = 51894874886400. Its totient is φ = 3199053312000.

The previous prime is 13221130031999. The next prime is 13221130032031. The reversal of 13221130032000 is 23003112231.

13221130032000 is a `hidden beast` number, since 1 + 32 + 2 + 11 + 300 + 320 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 866440371 + ... + 866455629.

It is an arithmetic number, because the mean of its divisors is an integer number (67571451675).

Almost surely, 2^{13221130032000} is an apocalyptic number.

13221130032000 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 13221130032000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25947437443200).

13221130032000 is an abundant number, since it is smaller than the sum of its proper divisors (38673744854400).

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

13221130032000 is a wasteful number, since it uses less digits than its factorization.

13221130032000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15852 (or 15827 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13221130032000 its reverse (23003112231), we get a palindrome (13244133144231).

The spelling of 13221130032000 in words is "thirteen trillion, two hundred twenty-one billion, one hundred thirty million, thirty-two thousand".