212322321331 has 4 divisors (see below), whose sum is σ = 214880421672. Its totient is φ = 209764220992.

The previous prime is 212322321317. The next prime is 212322321443. The reversal of 212322321331 is 133123223212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212322321331 - 2¹¹ = 212322319283 is a prime.

It is a super-2 number, since 2×212322321331² (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 = 212322321296 and 212322321305.

It is not an unprimeable number, because it can be changed into a prime (212322321031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1279050046 + ... + 1279050211.

It is an arithmetic number, because the mean of its divisors is an integer number (53720105418).

Almost surely, 2^212322321331 is an apocalyptic number.

212322321331 is a deficient number, since it is larger than the sum of its proper divisors (2558100341).

212322321331 is an equidigital number, since it uses as much as digits as its factorization.

212322321331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2558100340.

The product of its digits is 2592, while the sum is 25.

Adding to 212322321331 its reverse (133123223212), we get a palindrome (345445544543).

The spelling of 212322321331 in words is "two hundred twelve billion, three hundred twenty-two million, three hundred twenty-one thousand, three hundred thirty-one".