71113222 has 12 divisors (see below), whose sum is σ = 107809380. Its totient is φ = 35180736.

The previous prime is 71113187. The next prime is 71113243. The reversal of 71113222 is 22231117.

It is a self number, because there is not a number n which added to its sum of digits gives 71113222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16929 + ... + 20707.

It is an arithmetic number, because the mean of its divisors is an integer number (8984115).

Almost surely, 2^71113222 is an apocalyptic number.

71113222 is a deficient number, since it is larger than the sum of its proper divisors (36696158).

71113222 is an equidigital number, since it uses as much as digits as its factorization.

71113222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3975 (or 3878 counting only the distinct ones).

The product of its digits is 168, while the sum is 19.

The square root of 71113222 is about 8432.8655865014. The cubic root of 71113222 is about 414.3017668091.

Adding to 71113222 its reverse (22231117), we get a palindrome (93344339).

The spelling of 71113222 in words is "seventy-one million, one hundred thirteen thousand, two hundred twenty-two".