10215223 has 4 divisors (see below), whose sum is σ = 10276560. Its totient is φ = 10153888.

The previous prime is 10215211. The next prime is 10215229. The reversal of 10215223 is 32251201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10215223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10215197 and 10215206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10215229) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 30418 + ... + 30751.

It is an arithmetic number, because the mean of its divisors is an integer number (2569140).

Almost surely, 2^10215223 is an apocalyptic number.

10215223 is a deficient number, since it is larger than the sum of its proper divisors (61337).

10215223 is an equidigital number, since it uses as much as digits as its factorization.

10215223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61336.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 10215223 is about 3196.1262490709. The cubic root of 10215223 is about 216.9781243212.

Adding to 10215223 its reverse (32251201), we get a palindrome (42466424).

The spelling of 10215223 in words is "ten million, two hundred fifteen thousand, two hundred twenty-three".