6511222 has 8 divisors (see below), whose sum is σ = 9867816. Its totient is φ = 3221952.

The previous prime is 6511171. The next prime is 6511229. The reversal of 6511222 is 2221156.

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

It is a self number, because there is not a number n which added to its sum of digits gives 6511222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6511229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16588 + ... + 16975.

It is an arithmetic number, because the mean of its divisors is an integer number (1233477).

Almost surely, 2^6511222 is an apocalyptic number.

6511222 is a deficient number, since it is larger than the sum of its proper divisors (3356594).

6511222 is a wasteful number, since it uses less digits than its factorization.

6511222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33662.

The product of its digits is 240, while the sum is 19.

The square root of 6511222 is about 2551.7096229783. The cubic root of 6511222 is about 186.7328967083.

Adding to 6511222 its reverse (2221156), we get a palindrome (8732378).

The spelling of 6511222 in words is "six million, five hundred eleven thousand, two hundred twenty-two".