65220722 has 8 divisors (see below), whose sum is σ = 111806976. Its totient is φ = 27951732.

The previous prime is 65220707. The next prime is 65220761. The reversal of 65220722 is 22702256.

65220722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 65220691 and 65220700.

It is an unprimeable number.

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, 2329298 + ... + 2329325.

It is an arithmetic number, because the mean of its divisors is an integer number (13975872).

Almost surely, 2^65220722 is an apocalyptic number.

65220722 is a deficient number, since it is larger than the sum of its proper divisors (46586254).

65220722 is a wasteful number, since it uses less digits than its factorization.

65220722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4658632.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 65220722 is about 8075.9347446596. The cubic root of 65220722 is about 402.5271707286.

Adding to 65220722 its reverse (22702256), we get a palindrome (87922978).

The spelling of 65220722 in words is "sixty-five million, two hundred twenty thousand, seven hundred twenty-two".