71203224212 has 12 divisors (see below), whose sum is σ = 125441922900. Its totient is φ = 35362674816.

The previous prime is 71203224149. The next prime is 71203224247. The reversal of 71203224212 is 21242230217.

It can be written as a sum of positive squares in 2 ways, for example, as 30093228676 + 41109995536 = 173474^2 + 202756^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59733653 + ... + 59734844.

It is an arithmetic number, because the mean of its divisors is an integer number (10453493575).

Almost surely, 2^71203224212 is an apocalyptic number.

It is an amenable number.

71203224212 is a deficient number, since it is larger than the sum of its proper divisors (54238698688).

71203224212 is a wasteful number, since it uses less digits than its factorization.

71203224212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119468650 (or 119468648 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

Adding to 71203224212 its reverse (21242230217), we get a palindrome (92445454429).

The spelling of 71203224212 in words is "seventy-one billion, two hundred three million, two hundred twenty-four thousand, two hundred twelve".