13212325155500 has 192 divisors, whose sum is σ = 30918101760000. Its totient is φ = 4917320179200.

The previous prime is 13212325155499. The next prime is 13212325155529. The reversal of 13212325155500 is 555152321231.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 632794061 + ... + 632814939.

It is an arithmetic number, because the mean of its divisors is an integer number (161031780000).

Almost surely, 2^{13212325155500} is an apocalyptic number.

13212325155500 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 13212325155500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15459050880000).

13212325155500 is an abundant number, since it is smaller than the sum of its proper divisors (17705776604500).

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

13212325155500 is a wasteful number, since it uses less digits than its factorization.

13212325155500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22105 (or 22093 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 35.

Adding to 13212325155500 its reverse (555152321231), we get a palindrome (13767477476731).

The spelling of 13212325155500 in words is "thirteen trillion, two hundred twelve billion, three hundred twenty-five million, one hundred fifty-five thousand, five hundred".