10422218 has 4 divisors (see below), whose sum is σ = 15633330. Its totient is φ = 5211108.

The previous prime is 10422199. The next prime is 10422221. The reversal of 10422218 is 81222401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9138529 + 1283689 = 3023^2 + 1133^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10422218.

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 as a sum of consecutive naturals, namely, 2605553 + ... + 2605556.

Almost surely, 2^10422218 is an apocalyptic number.

10422218 is a deficient number, since it is larger than the sum of its proper divisors (5211112).

10422218 is an equidigital number, since it uses as much as digits as its factorization.

10422218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5211111.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 10422218 is about 3228.3460161513. The cubic root of 10422218 is about 218.4339055851.

Adding to 10422218 its reverse (81222401), we get a palindrome (91644619).

It can be divided in two parts, 104 and 22218, that added together give a palindrome (22322).

The spelling of 10422218 in words is "ten million, four hundred twenty-two thousand, two hundred eighteen".