10722218 has 32 divisors (see below), whose sum is σ = 18289152. Its totient is φ = 4680000.

The previous prime is 10722169. The next prime is 10722227. The reversal of 10722218 is 81222701.

It is a super-2 number, since 2×10722218² = 229931917679048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10722193 and 10722202.

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 15 ways as a sum of consecutive naturals, for example, 42593 + ... + 42843.

It is an arithmetic number, because the mean of its divisors is an integer number (571536).

Almost surely, 2^10722218 is an apocalyptic number.

10722218 is a deficient number, since it is larger than the sum of its proper divisors (7566934).

10722218 is a wasteful number, since it uses less digits than its factorization.

10722218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 10722218 is about 3274.4798060150. The cubic root of 10722218 is about 220.5099602489.

Adding to 10722218 its reverse (81222701), we get a palindrome (91944919).

The spelling of 10722218 in words is "ten million, seven hundred twenty-two thousand, two hundred eighteen".