212244133 has 4 divisors (see below), whose sum is σ = 224729100. Its totient is φ = 199759168.

The previous prime is 212244103. The next prime is 212244139. The reversal of 212244133 is 331442212.

212244133 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 can be written as a sum of positive squares in 2 ways, for example, as 135908964 + 76335169 = 11658^2 + 8737^2 .

It is a cyclic number.

It is not a de Polignac number, because 212244133 - 2⁵ = 212244101 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 (212244139) 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, 6242458 + ... + 6242491.

It is an arithmetic number, because the mean of its divisors is an integer number (56182275).

Almost surely, 2^212244133 is an apocalyptic number.

It is an amenable number.

212244133 is a deficient number, since it is larger than the sum of its proper divisors (12484967).

212244133 is a wasteful number, since it uses less digits than its factorization.

212244133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12484966.

The product of its digits is 1152, while the sum is 22.

The square root of 212244133 is about 14568.6009280233. The cubic root of 212244133 is about 596.5019915633.

Adding to 212244133 its reverse (331442212), we get a palindrome (543686345).

The spelling of 212244133 in words is "two hundred twelve million, two hundred forty-four thousand, one hundred thirty-three".