10241221 has 4 divisors (see below), whose sum is σ = 10253952. Its totient is φ = 10228492.

The previous prime is 10241219. The next prime is 10241227. The reversal of 10241221 is 12214201.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12214201 = 71 ⋅172031.

It is a cyclic number.

It is not a de Polignac number, because 10241221 - 2¹ = 10241219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10241227) 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, 5071 + ... + 6796.

It is an arithmetic number, because the mean of its divisors is an integer number (2563488).

Almost surely, 2^10241221 is an apocalyptic number.

It is an amenable number.

10241221 is a deficient number, since it is larger than the sum of its proper divisors (12731).

10241221 is an equidigital number, since it uses as much as digits as its factorization.

10241221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12730.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 10241221 is about 3200.1907755632. The cubic root of 10241221 is about 217.1620399843.

Adding to 10241221 its reverse (12214201), we get a palindrome (22455422).

The spelling of 10241221 in words is "ten million, two hundred forty-one thousand, two hundred twenty-one".