1224101 has 4 divisors (see below), whose sum is σ = 1226400. Its totient is φ = 1221804.

The previous prime is 1224089. The next prime is 1224109. The reversal of 1224101 is 1014221.

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: 1014221 = 13 ⋅78017.

It is a cyclic number.

It is not a de Polignac number, because 1224101 - 2¹⁰ = 1223077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110 + ... + 1568.

It is an arithmetic number, because the mean of its divisors is an integer number (306600).

2^1224101 is an apocalyptic number.

It is an amenable number.

1224101 is a deficient number, since it is larger than the sum of its proper divisors (2299).

1224101 is an equidigital number, since it uses as much as digits as its factorization.

1224101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2298.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1224101 is about 1106.3909797174. The cubic root of 1224101 is about 106.9725669912.

Adding to 1224101 its reverse (1014221), we get a palindrome (2238322).

The spelling of 1224101 in words is "one million, two hundred twenty-four thousand, one hundred one".