212711006 has 4 divisors (see below), whose sum is σ = 319066512. Its totient is φ = 106355502.

The previous prime is 212710973. The next prime is 212711011. The reversal of 212711006 is 600117212.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53177750 + ... + 53177753.

It is an arithmetic number, because the mean of its divisors is an integer number (79766628).

Almost surely, 2^212711006 is an apocalyptic number.

212711006 is a deficient number, since it is larger than the sum of its proper divisors (106355506).

212711006 is a wasteful number, since it uses less digits than its factorization.

212711006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106355505.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 212711006 is about 14584.6153874554. The cubic root of 212711006 is about 596.9390460080.

Adding to 212711006 its reverse (600117212), we get a palindrome (812828218).

The spelling of 212711006 in words is "two hundred twelve million, seven hundred eleven thousand, six".