711112221 has 12 divisors (see below), whose sum is σ = 1081223520. Its totient is φ = 449123400.

The previous prime is 711112201. The next prime is 711112247. The reversal of 711112221 is 122211117.

711112221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 711112221 - 2⁷ = 711112093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 711112194 and 711112203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (711112201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2079105 + ... + 2079446.

It is an arithmetic number, because the mean of its divisors is an integer number (90101960).

Almost surely, 2^711112221 is an apocalyptic number.

It is an amenable number.

711112221 is a deficient number, since it is larger than the sum of its proper divisors (370111299).

711112221 is a wasteful number, since it uses less digits than its factorization.

711112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4158576 (or 4158573 counting only the distinct ones).

The product of its digits is 56, while the sum is 18.

The square root of 711112221 is about 26666.6874770752. The cubic root of 711112221 is about 892.5777311486.

Adding to 711112221 its reverse (122211117), we get a palindrome (833323338).

The spelling of 711112221 in words is "seven hundred eleven million, one hundred twelve thousand, two hundred twenty-one".