212244479 has 4 divisors (see below), whose sum is σ = 212273880. Its totient is φ = 212215080.

The previous prime is 212244463. The next prime is 212244491. The reversal of 212244479 is 974442212.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 212244479 - 2⁴ = 212244463 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 (212244449) 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, 4409 + ... + 21069.

It is an arithmetic number, because the mean of its divisors is an integer number (53068470).

Almost surely, 2^212244479 is an apocalyptic number.

212244479 is a deficient number, since it is larger than the sum of its proper divisors (29401).

212244479 is a wasteful number, since it uses less digits than its factorization.

212244479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29400.

The product of its digits is 32256, while the sum is 35.

The square root of 212244479 is about 14568.6128028718. The cubic root of 212244479 is about 596.5023157020.

The spelling of 212244479 in words is "two hundred twelve million, two hundred forty-four thousand, four hundred seventy-nine".