1224223541 has 4 divisors (see below), whose sum is σ = 1224328812. Its totient is φ = 1224118272.

The previous prime is 1224223529. The next prime is 1224223549. The reversal of 1224223541 is 1453224221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 529690225 + 694533316 = 23015^2 + 26354^2 .

It is a cyclic number.

It is not a de Polignac number, because 1224223541 - 2³⁰ = 150481717 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1224223541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224223549) 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, 32666 + ... + 59291.

It is an arithmetic number, because the mean of its divisors is an integer number (306082203).

Almost surely, 2^1224223541 is an apocalyptic number.

It is an amenable number.

1224223541 is a deficient number, since it is larger than the sum of its proper divisors (105271).

1224223541 is an equidigital number, since it uses as much as digits as its factorization.

1224223541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105270.

The product of its digits is 3840, while the sum is 26.

The square root of 1224223541 is about 34988.9059703215. The cubic root of 1224223541 is about 1069.7613643736.

Adding to 1224223541 its reverse (1453224221), we get a palindrome (2677447762).

The spelling of 1224223541 in words is "one billion, two hundred twenty-four million, two hundred twenty-three thousand, five hundred forty-one".