1224002231 has 4 divisors (see below), whose sum is σ = 1224898992. Its totient is φ = 1223105472.

The previous prime is 1224002207. The next prime is 1224002237. The reversal of 1224002231 is 1322004221.

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

It is a cyclic number.

It is not a de Polignac number, because 1224002231 - 2⁶ = 1224002167 is a prime.

It is a super-2 number, since 2×1224002231² = 2996362922985954722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224002237) 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 3 ways as a sum of consecutive naturals, for example, 446330 + ... + 449063.

It is an arithmetic number, because the mean of its divisors is an integer number (306224748).

Almost surely, 2^1224002231 is an apocalyptic number.

1224002231 is a deficient number, since it is larger than the sum of its proper divisors (896761).

1224002231 is an equidigital number, since it uses as much as digits as its factorization.

1224002231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896760.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1224002231 is about 34985.7432535026. The cubic root of 1224002231 is about 1069.6968981637.

Adding to 1224002231 its reverse (1322004221), we get a palindrome (2546006452).

The spelling of 1224002231 in words is "one billion, two hundred twenty-four million, two thousand, two hundred thirty-one".