71059221212 has 18 divisors (see below), whose sum is σ = 144656272152. Its totient is φ = 30453951864.

The previous prime is 71059221203. The next prime is 71059221253. The reversal of 71059221212 is 21212295017.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 181273328 + ... + 181273719.

It is an arithmetic number, because the mean of its divisors is an integer number (8036459564).

Almost surely, 2^71059221212 is an apocalyptic number.

It is an amenable number.

71059221212 is an abundant number, since it is smaller than the sum of its proper divisors (73597050940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71059221212 is a wasteful number, since it uses less digits than its factorization.

71059221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362547065 (or 362547056 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The spelling of 71059221212 in words is "seventy-one billion, fifty-nine million, two hundred twenty-one thousand, two hundred twelve".