212121020323332 has 36 divisors (see below), whose sum is σ = 536195243163580. Its totient is φ = 70706948516352.

The previous prime is 212121020323321. The next prime is 212121020323367. The reversal of 212121020323332 is 233323020121212.

212121020323332 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 2 + 1 + 0 + 2 + 0 + 323 + 332 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12236675625216 + 199884344698116 = 3498096^2 + 14138046^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×212121020323332³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 212121020323296 and 212121020323305.

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 11 ways as a sum of consecutive naturals, for example, 85770048 + ... + 88208520.

Almost surely, 2^{212121020323332} is an apocalyptic number.

It is an amenable number.

212121020323332 is an abundant number, since it is smaller than the sum of its proper divisors (324074222840248).

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

212121020323332 is a wasteful number, since it uses less digits than its factorization.

212121020323332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4854852 (or 4854847 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 212121020323332 its reverse (233323020121212), we get a palindrome (445444040444544).

The spelling of 212121020323332 in words is "two hundred twelve trillion, one hundred twenty-one billion, twenty million, three hundred twenty-three thousand, three hundred thirty-two".