10221222 has 32 divisors (see below), whose sum is σ = 22425984. Its totient is φ = 3080000.

The previous prime is 10221203. The next prime is 10221247. The reversal of 10221222 is 22212201.

It is a junction number, because it is equal to n+sod(n) for n = 10221198 and 10221207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16258 + ... + 16874.

It is an arithmetic number, because the mean of its divisors is an integer number (700812).

Almost surely, 2^10221222 is an apocalyptic number.

10221222 is an abundant number, since it is smaller than the sum of its proper divisors (12204762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10221222 is a wasteful number, since it uses less digits than its factorization.

10221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 10221222 is about 3197.0645911523. The cubic root of 10221222 is about 217.0205902581.

Adding to 10221222 its reverse (22212201), we get a palindrome (32433423).

The spelling of 10221222 in words is "ten million, two hundred twenty-one thousand, two hundred twenty-two".