10226621 has 4 divisors (see below), whose sum is σ = 10556544. Its totient is φ = 9896700.

The previous prime is 10226611. The next prime is 10226641. The reversal of 10226621 is 12662201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10226621 - 2¹⁰ = 10225597 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10226593 and 10226602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10226611) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 164915 + ... + 164976.

It is an arithmetic number, because the mean of its divisors is an integer number (2639136).

Almost surely, 2^10226621 is an apocalyptic number.

It is an amenable number.

10226621 is a deficient number, since it is larger than the sum of its proper divisors (329923).

10226621 is an equidigital number, since it uses as much as digits as its factorization.

10226621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329922.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 10226621 is about 3197.9088479818. The cubic root of 10226621 is about 217.0587946896.

Adding to 10226621 its reverse (12662201), we get a palindrome (22888822).

The spelling of 10226621 in words is "ten million, two hundred twenty-six thousand, six hundred twenty-one".