12212100243200 has 432 divisors, whose sum is σ = 35538797371392. Its totient is φ = 4095989760000.

The previous prime is 12212100243181. The next prime is 12212100243241. The reversal of 12212100243200 is 234200121221.

12212100243200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1382862785 + ... + 1382871615.

It is an arithmetic number, because the mean of its divisors is an integer number (82265734656).

Almost surely, 2^{12212100243200} is an apocalyptic number.

12212100243200 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 12212100243200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17769398685696).

12212100243200 is an abundant number, since it is smaller than the sum of its proper divisors (23326697128192).

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

12212100243200 is a wasteful number, since it uses less digits than its factorization.

12212100243200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10392 (or 10373 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12212100243200 its reverse (234200121221), we get a palindrome (12446300364421).

The spelling of 12212100243200 in words is "twelve trillion, two hundred twelve billion, one hundred million, two hundred forty-three thousand, two hundred".