212021030322 has 48 divisors (see below), whose sum is σ = 475242669720. Its totient is φ = 68267232000.

The previous prime is 212021030311. The next prime is 212021030327. The reversal of 212021030322 is 223030120212.

212021030322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 125756053641 + 86264976681 = 354621^2 + 293709^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 212021030295 and 212021030304.

It is not an unprimeable number, because it can be changed into a prime (212021030327) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1347697 + ... + 1496772.

Almost surely, 2^212021030322 is an apocalyptic number.

212021030322 is an abundant number, since it is smaller than the sum of its proper divisors (263221639398).

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

212021030322 is a wasteful number, since it uses less digits than its factorization.

212021030322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2844619 (or 2844616 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 212021030322 its reverse (223030120212), we get a palindrome (435051150534).

The spelling of 212021030322 in words is "two hundred twelve billion, twenty-one million, thirty thousand, three hundred twenty-two".