71226594972226 has 16 divisors (see below), whose sum is σ = 107524275629688. Its totient is φ = 35385619276800.

The previous prime is 71226594972223. The next prime is 71226594972251. The reversal of 71226594972226 is 62227949562217.

It is a Cunningham number, because it is equal to 8439585²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 54474363455625 + 16752231516601 = 7380675^2 + 4092949^2 .

It is a super-2 number, since 2×71226594972226² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71226594972223) 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, 112061205 + ... + 112695016.

Almost surely, 2^{71226594972226} is an apocalyptic number.

71226594972226 is a deficient number, since it is larger than the sum of its proper divisors (36297680657462).

71226594972226 is a wasteful number, since it uses less digits than its factorization.

71226594972226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224757237.

The product of its digits is 91445760, while the sum is 64.

The spelling of 71226594972226 in words is "seventy-one trillion, two hundred twenty-six billion, five hundred ninety-four million, nine hundred seventy-two thousand, two hundred twenty-six".