1224233231 has 16 divisors (see below), whose sum is σ = 1365574560. Its totient is φ = 1089728640.

The previous prime is 1224233209. The next prime is 1224233237. The reversal of 1224233231 is 1323324221.

It is not a de Polignac number, because 1224233231 - 2¹⁸ = 1223971087 is a prime.

It is a super-2 number, since 2×1224233231² = 2997494007769398722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1224233197 and 1224233206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224233237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 410576 + ... + 413546.

It is an arithmetic number, because the mean of its divisors is an integer number (85348410).

Almost surely, 2^1224233231 is an apocalyptic number.

1224233231 is a deficient number, since it is larger than the sum of its proper divisors (141341329).

1224233231 is a wasteful number, since it uses less digits than its factorization.

1224233231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4106.

The product of its digits is 1728, while the sum is 23.

The square root of 1224233231 is about 34989.0444425109. The cubic root of 1224233231 is about 1069.7641868320.

Adding to 1224233231 its reverse (1323324221), we get a palindrome (2547557452).

The spelling of 1224233231 in words is "one billion, two hundred twenty-four million, two hundred thirty-three thousand, two hundred thirty-one".