10221227 has 4 divisors (see below), whose sum is σ = 10550976. Its totient is φ = 9891480.

The previous prime is 10221203. The next prime is 10221247. The reversal of 10221227 is 72212201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72212201 = 1511 ⋅47791.

It is not a de Polignac number, because 10221227 - 2¹² = 10217131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10221247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164828 + ... + 164889.

It is an arithmetic number, because the mean of its divisors is an integer number (2637744).

Almost surely, 2^10221227 is an apocalyptic number.

10221227 is a deficient number, since it is larger than the sum of its proper divisors (329749).

10221227 is an equidigital number, since it uses as much as digits as its factorization.

10221227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329748.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 10221227 is about 3197.0653731195. The cubic root of 10221227 is about 217.0206256454.

Adding to 10221227 its reverse (72212201), we get a palindrome (82433428).

The spelling of 10221227 in words is "ten million, two hundred twenty-one thousand, two hundred twenty-seven".