212443022111320 has 1024 divisors, whose sum is σ = 653239390003200. Its totient is φ = 60044156928000.

The previous prime is 212443022111297. The next prime is 212443022111321. The reversal of 212443022111320 is 23111220344212.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212443022111321) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 381405784482 + ... + 381405785038.

It is an arithmetic number, because the mean of its divisors is an integer number (637929091800).

Almost surely, 2^{212443022111320} is an apocalyptic number.

212443022111320 is a gapful number since it is divisible by the number (20) 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 212443022111320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326619695001600).

212443022111320 is an abundant number, since it is smaller than the sum of its proper divisors (440796367891880).

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

212443022111320 is a wasteful number, since it uses less digits than its factorization.

212443022111320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300 (or 1296 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 212443022111320 its reverse (23111220344212), we get a palindrome (235554242455532).

The spelling of 212443022111320 in words is "two hundred twelve trillion, four hundred forty-three billion, twenty-two million, one hundred eleven thousand, three hundred twenty".