212771206 has 12 divisors (see below), whose sum is σ = 333638172. Its totient is φ = 101759636.

The previous prime is 212771189. The next prime is 212771219. The reversal of 212771206 is 602177212.

It is a super-2 number, since 2×212771206² = 90543172205388872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 99496 + ... + 101611.

It is an arithmetic number, because the mean of its divisors is an integer number (27803181).

Almost surely, 2^212771206 is an apocalyptic number.

212771206 is a deficient number, since it is larger than the sum of its proper divisors (120866966).

212771206 is a wasteful number, since it uses less digits than its factorization.

212771206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201155 (or 201132 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 212771206 is about 14586.6790600191. The cubic root of 212771206 is about 596.9953545518.

The spelling of 212771206 in words is "two hundred twelve million, seven hundred seventy-one thousand, two hundred six".