10421222 has 24 divisors (see below), whose sum is σ = 18614376. Its totient is φ = 4360608.

The previous prime is 10421207. The next prime is 10421233. The reversal of 10421222 is 22212401.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 10421197 and 10421206.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 2978 + ... + 5450.

It is an arithmetic number, because the mean of its divisors is an integer number (775599).

Almost surely, 2^10421222 is an apocalyptic number.

10421222 is a deficient number, since it is larger than the sum of its proper divisors (8193154).

10421222 is a wasteful number, since it uses less digits than its factorization.

10421222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2532 (or 2525 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 10421222 is about 3228.1917539081. The cubic root of 10421222 is about 218.4269471462.

Adding to 10421222 its reverse (22212401), we get a palindrome (32633623).

The spelling of 10421222 in words is "ten million, four hundred twenty-one thousand, two hundred twenty-two".