71020220221113 has 16 divisors (see below), whose sum is σ = 99711556792320. Its totient is φ = 44839551301776.

The previous prime is 71020220221081. The next prime is 71020220221123. The reversal of 71020220221113 is 31112202202017.

It is a happy number.

It is not a de Polignac number, because 71020220221113 - 2⁵ = 71020220221081 is a prime.

It is a super-2 number, since 2×71020220221113² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71020220221123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212673745 + ... + 213007422.

It is an arithmetic number, because the mean of its divisors is an integer number (6231972299520).

Almost surely, 2^{71020220221113} is an apocalyptic number.

It is an amenable number.

71020220221113 is a deficient number, since it is larger than the sum of its proper divisors (28691336571207).

71020220221113 is a wasteful number, since it uses less digits than its factorization.

71020220221113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425684116.

The product of its (nonzero) digits is 672, while the sum is 24.

The spelling of 71020220221113 in words is "seventy-one trillion, twenty billion, two hundred twenty million, two hundred twenty-one thousand, one hundred thirteen".