212120323331 has 8 divisors (see below), whose sum is σ = 242427012864. Its totient is φ = 181814580360.

The previous prime is 212120323301. The next prime is 212120323367. The reversal of 212120323331 is 133323021212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212120323331 - 2⁶ = 212120323267 is a prime.

It is a super-2 number, since 2×212120323331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212120323297 and 212120323306.

It is not an unprimeable number, because it can be changed into a prime (212120323301) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 335936 + ... + 732866.

It is an arithmetic number, because the mean of its divisors is an integer number (30303376608).

Almost surely, 2^212120323331 is an apocalyptic number.

212120323331 is a deficient number, since it is larger than the sum of its proper divisors (30306689533).

212120323331 is an equidigital number, since it uses as much as digits as its factorization.

212120323331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473281.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 212120323331 its reverse (133323021212), we get a palindrome (345443344543).

The spelling of 212120323331 in words is "two hundred twelve billion, one hundred twenty million, three hundred twenty-three thousand, three hundred thirty-one".