212224320332340 has 96 divisors (see below), whose sum is σ = 614723212575360. Its totient is φ = 54641264832000.

The previous prime is 212224320332327. The next prime is 212224320332351. The reversal of 212224320332340 is 43233023422212.

It is a super-2 number, since 2×212224320332340² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 293439570 + ... + 294161910.

It is an arithmetic number, because the mean of its divisors is an integer number (6403366797660).

Almost surely, 2^{212224320332340} is an apocalyptic number.

212224320332340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212224320332340 is an abundant number, since it is smaller than the sum of its proper divisors (402498892243020).

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

212224320332340 is a wasteful number, since it uses less digits than its factorization.

212224320332340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891233 (or 891231 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 33.

Adding to 212224320332340 its reverse (43233023422212), we get a palindrome (255457343754552).

The spelling of 212224320332340 in words is "two hundred twelve trillion, two hundred twenty-four billion, three hundred twenty million, three hundred thirty-two thousand, three hundred forty".