10221422 has 4 divisors (see below), whose sum is σ = 15332136. Its totient is φ = 5110710.

The previous prime is 10221397. The next prime is 10221443. The reversal of 10221422 is 22412201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22412201 = 7 ⋅3201743.

It is a junction number, because it is equal to n+sod(n) for n = 10221397 and 10221406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555354 + ... + 2555357.

It is an arithmetic number, because the mean of its divisors is an integer number (3833034).

Almost surely, 2^10221422 is an apocalyptic number.

10221422 is a deficient number, since it is larger than the sum of its proper divisors (5110714).

10221422 is an equidigital number, since it uses as much as digits as its factorization.

10221422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5110713.

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

The square root of 10221422 is about 3197.0958696917. The cubic root of 10221422 is about 217.0220057391.

Adding to 10221422 its reverse (22412201), we get a palindrome (32633623).

The spelling of 10221422 in words is "ten million, two hundred twenty-one thousand, four hundred twenty-two".