1224405101 has 16 divisors (see below), whose sum is σ = 1261735104. Its totient is φ = 1187771904.

The previous prime is 1224405071. The next prime is 1224405107. The reversal of 1224405101 is 1015044221.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1224405101 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 (1224405107) 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 15 ways as a sum of consecutive naturals, for example, 1903886 + ... + 1904528.

It is an arithmetic number, because the mean of its divisors is an integer number (78858444).

Almost surely, 2^1224405101 is an apocalyptic number.

It is an amenable number.

1224405101 is a deficient number, since it is larger than the sum of its proper divisors (37330003).

1224405101 is an equidigital number, since it uses as much as digits as its factorization.

1224405101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1224405101 is about 34991.5004108141. The cubic root of 1224405101 is about 1069.8142458575.

Adding to 1224405101 its reverse (1015044221), we get a palindrome (2239449322).

The spelling of 1224405101 in words is "one billion, two hundred twenty-four million, four hundred five thousand, one hundred one".