212001320324 has 12 divisors (see below), whose sum is σ = 383795493900. Its totient is φ = 102345464928.

The previous prime is 212001320243. The next prime is 212001320359. The reversal of 212001320324 is 423023100212.

It can be written as a sum of positive squares in 2 ways, for example, as 151229209924 + 60772110400 = 388882^2 + 246520^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212001320296 and 212001320305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 913798679 + ... + 913798910.

It is an arithmetic number, because the mean of its divisors is an integer number (31982957825).

Almost surely, 2^212001320324 is an apocalyptic number.

It is an amenable number.

212001320324 is a deficient number, since it is larger than the sum of its proper divisors (171794173576).

212001320324 is a wasteful number, since it uses less digits than its factorization.

212001320324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827597622 (or 1827597620 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 212001320324 its reverse (423023100212), we get a palindrome (635024420536).

The spelling of 212001320324 in words is "two hundred twelve billion, one million, three hundred twenty thousand, three hundred twenty-four".