71232222 has 8 divisors (see below), whose sum is σ = 142464456. Its totient is φ = 23744072.

The previous prime is 71232199. The next prime is 71232229. The reversal of 71232222 is 22223217.

It is a happy number.

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

71232222 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71232229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5936013 + ... + 5936024.

It is an arithmetic number, because the mean of its divisors is an integer number (17808057).

Almost surely, 2^71232222 is an apocalyptic number.

71232222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

71232222 is a wasteful number, since it uses less digits than its factorization.

71232222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11872042.

The product of its digits is 672, while the sum is 21.

The square root of 71232222 is about 8439.9183645341. The cubic root of 71232222 is about 414.5327338688.

Adding to 71232222 its reverse (22223217), we get a palindrome (93455439).

The spelling of 71232222 in words is "seventy-one million, two hundred thirty-two thousand, two hundred twenty-two".