13212112320000 has 2400 divisors, whose sum is σ = 54785979499680. Its totient is φ = 3034644480000.

The previous prime is 13212112319981. The next prime is 13212112320013. The reversal of 13212112320000 is 2321121231.

13212112320000 is a `hidden beast` number, since 1 + 321 + 21 + 1 + 2 + 320 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2400).

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 239 ways as a sum of consecutive naturals, for example, 67066559902 + ... + 67066560098.

Almost surely, 2^{13212112320000} is an apocalyptic number.

13212112320000 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 13212112320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27392989749840).

13212112320000 is an abundant number, since it is smaller than the sum of its proper divisors (41573867179680).

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

13212112320000 is a wasteful number, since it uses less digits than its factorization.

13212112320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 320 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 13212112320000 its reverse (2321121231), we get a palindrome (13214433441231).

The spelling of 13212112320000 in words is "thirteen trillion, two hundred twelve billion, one hundred twelve million, three hundred twenty thousand".