71210212 has 24 divisors (see below), whose sum is σ = 133195104. Its totient is φ = 33194112.

The previous prime is 71210203. The next prime is 71210219. The reversal of 71210212 is 21201217.

It is not an unprimeable number, because it can be changed into a prime (71210219) 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 7 ways as a sum of consecutive naturals, for example, 2383 + ... + 12169.

It is an arithmetic number, because the mean of its divisors is an integer number (5549796).

Almost surely, 2^71210212 is an apocalyptic number.

It is an amenable number.

71210212 is a deficient number, since it is larger than the sum of its proper divisors (61984892).

71210212 is a wasteful number, since it uses less digits than its factorization.

71210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9915 (or 9913 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 71210212 is about 8438.6143412293. The cubic root of 71210212 is about 414.4900340666.

Adding to 71210212 its reverse (21201217), we get a palindrome (92411429).

The spelling of 71210212 in words is "seventy-one million, two hundred ten thousand, two hundred twelve".