71100212 has 6 divisors (see below), whose sum is σ = 124425378. Its totient is φ = 35550104.

The previous prime is 71100203. The next prime is 71100217. The reversal of 71100212 is 21200117.

It can be written as a sum of positive squares in only one way, i.e., 64577296 + 6522916 = 8036^2 + 2554^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71100217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8887523 + ... + 8887530.

It is an arithmetic number, because the mean of its divisors is an integer number (20737563).

Almost surely, 2^71100212 is an apocalyptic number.

It is an amenable number.

71100212 is a deficient number, since it is larger than the sum of its proper divisors (53325166).

71100212 is a wasteful number, since it uses less digits than its factorization.

71100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17775057 (or 17775055 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 71100212 is about 8432.0941645596. The cubic root of 71100212 is about 414.2765000838.

Adding to 71100212 its reverse (21200117), we get a palindrome (92300329).

The spelling of 71100212 in words is "seventy-one million, one hundred thousand, two hundred twelve".