1224113220331 has 4 divisors (see below), whose sum is σ = 1227106162600. Its totient is φ = 1221120278064.

The previous prime is 1224113220307. The next prime is 1224113220389. The reversal of 1224113220331 is 1330223114221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1224113220331 is a prime.

It is a super-2 number, since 2×1224113220331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1224113220296 and 1224113220305.

It is not an unprimeable number, because it can be changed into a prime (1224113820331) 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, 1496470521 + ... + 1496471338.

It is an arithmetic number, because the mean of its divisors is an integer number (306776540650).

Almost surely, 2^{1224113220331} is an apocalyptic number.

1224113220331 is a deficient number, since it is larger than the sum of its proper divisors (2992942269).

1224113220331 is an equidigital number, since it uses as much as digits as its factorization.

1224113220331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992942268.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1224113220331 its reverse (1330223114221), we get a palindrome (2554336334552).

The spelling of 1224113220331 in words is "one trillion, two hundred twenty-four billion, one hundred thirteen million, two hundred twenty thousand, three hundred thirty-one".