212465322133 has 4 divisors (see below), whose sum is σ = 212748232768. Its totient is φ = 212182411500.

The previous prime is 212465322131. The next prime is 212465322187. The reversal of 212465322133 is 331223564212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212465322133 - 2¹ = 212465322131 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212465322131) 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, 141454191 + ... + 141455692.

It is an arithmetic number, because the mean of its divisors is an integer number (53187058192).

Almost surely, 2^212465322133 is an apocalyptic number.

It is an amenable number.

212465322133 is a deficient number, since it is larger than the sum of its proper divisors (282910635).

212465322133 is an equidigital number, since it uses as much as digits as its factorization.

212465322133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282910634.

The product of its digits is 51840, while the sum is 34.

Adding to 212465322133 its reverse (331223564212), we get a palindrome (543688886345).

The spelling of 212465322133 in words is "two hundred twelve billion, four hundred sixty-five million, three hundred twenty-two thousand, one hundred thirty-three".