212212134331 has 4 divisors (see below), whose sum is σ = 212757667200. Its totient is φ = 211666601464.

The previous prime is 212212134301. The next prime is 212212134353. The reversal of 212212134331 is 133431212212.

212212134331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212212134331 - 2²⁹ = 211675263419 is a prime.

It is a super-2 number, since 2×212212134331² (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 = 212212134296 and 212212134305.

It is not an unprimeable number, because it can be changed into a prime (212212134301) 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 3 ways as a sum of consecutive naturals, for example, 272765851 + ... + 272766628.

It is an arithmetic number, because the mean of its divisors is an integer number (53189416800).

Almost surely, 2^212212134331 is an apocalyptic number.

212212134331 is a deficient number, since it is larger than the sum of its proper divisors (545532869).

212212134331 is an equidigital number, since it uses as much as digits as its factorization.

212212134331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545532868.

The product of its digits is 1728, while the sum is 25.

Adding to 212212134331 its reverse (133431212212), we get a palindrome (345643346543).

The spelling of 212212134331 in words is "two hundred twelve billion, two hundred twelve million, one hundred thirty-four thousand, three hundred thirty-one".