71104502221 has 8 divisors (see below), whose sum is σ = 72203498744. Its totient is φ = 70008883200.

The previous prime is 71104502213. The next prime is 71104502263. The reversal of 71104502221 is 12220540117.

It can be written as a sum of positive squares in 4 ways, for example, as 48569988996 + 22534513225 = 220386^2 + 150115^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71104502221 - 2³ = 71104502213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71104503221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 801930 + ... + 886171.

It is an arithmetic number, because the mean of its divisors is an integer number (9025437343).

Almost surely, 2^71104502221 is an apocalyptic number.

It is an amenable number.

71104502221 is a deficient number, since it is larger than the sum of its proper divisors (1098996523).

71104502221 is a wasteful number, since it uses less digits than its factorization.

71104502221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688751.

The product of its (nonzero) digits is 1120, while the sum is 25.

The spelling of 71104502221 in words is "seventy-one billion, one hundred four million, five hundred two thousand, two hundred twenty-one".