1321441224 has 16 divisors (see below), whose sum is σ = 3303603120. Its totient is φ = 440480400.

The previous prime is 1321441207. The next prime is 1321441271. The reversal of 1321441224 is 4221441231.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 55060051 = 1321441224 / (1 + 3 + 2 + 1 + 4 + 4 + 1 + 2 + 2 + 4).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1321441194 and 1321441203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27530002 + ... + 27530049.

It is an arithmetic number, because the mean of its divisors is an integer number (206475195).

Almost surely, 2^1321441224 is an apocalyptic number.

It is an amenable number.

1321441224 is an abundant number, since it is smaller than the sum of its proper divisors (1982161896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1321441224 is a wasteful number, since it uses less digits than its factorization.

1321441224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55060060 (or 55060056 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 1321441224 is about 36351.6330307182. The cubic root of 1321441224 is about 1097.3603993579.

Adding to 1321441224 its reverse (4221441231), we get a palindrome (5542882455).

The spelling of 1321441224 in words is "one billion, three hundred twenty-one million, four hundred forty-one thousand, two hundred twenty-four".