212282755 has 32 divisors (see below), whose sum is σ = 280402560. Its totient is φ = 153753600.

The previous prime is 212282753. The next prime is 212282779. The reversal of 212282755 is 557282212.

212282755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212282755 - 2¹ = 212282753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212282755.

It is not an unprimeable number, because it can be changed into a prime (212282753) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 176155 + ... + 177355.

It is an arithmetic number, because the mean of its divisors is an integer number (8762580).

Almost surely, 2^212282755 is an apocalyptic number.

212282755 is a deficient number, since it is larger than the sum of its proper divisors (68119805).

212282755 is a wasteful number, since it uses less digits than its factorization.

212282755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311.

The product of its digits is 22400, while the sum is 34.

The square root of 212282755 is about 14569.9263896562. The cubic root of 212282755 is about 596.5381711306.

The spelling of 212282755 in words is "two hundred twelve million, two hundred eighty-two thousand, seven hundred fifty-five".