212771056 has 20 divisors (see below), whose sum is σ = 417893392. Its totient is φ = 104927616.

The previous prime is 212771047. The next prime is 212771059. The reversal of 212771056 is 650177212.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212771059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89916 + ... + 92251.

Almost surely, 2^212771056 is an apocalyptic number.

It is an amenable number.

212771056 is a deficient number, since it is larger than the sum of its proper divisors (205122336).

212771056 is a wasteful number, since it uses less digits than its factorization.

212771056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182248 (or 182242 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 212771056 is about 14586.6739183407. The cubic root of 212771056 is about 596.9952142613.

The spelling of 212771056 in words is "two hundred twelve million, seven hundred seventy-one thousand, fifty-six".