12213124433 has 4 divisors (see below), whose sum is σ = 12214099620. Its totient is φ = 12212149248.

The previous prime is 12213124423. The next prime is 12213124447. The reversal of 12213124433 is 33442131221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33442131221 = 389 ⋅85969489.

It can be written as a sum of positive squares in 2 ways, for example, as 461046784 + 11752077649 = 21472^2 + 108407^2 .

It is a cyclic number.

It is not a de Polignac number, because 12213124433 - 2¹⁴ = 12213108049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12213124423) 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, 468560 + ... + 493937.

It is an arithmetic number, because the mean of its divisors is an integer number (3053524905).

Almost surely, 2^12213124433 is an apocalyptic number.

It is an amenable number.

12213124433 is a deficient number, since it is larger than the sum of its proper divisors (975187).

12213124433 is an equidigital number, since it uses as much as digits as its factorization.

12213124433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975186.

The product of its digits is 3456, while the sum is 26.

Adding to 12213124433 its reverse (33442131221), we get a palindrome (45655255654).

The spelling of 12213124433 in words is "twelve billion, two hundred thirteen million, one hundred twenty-four thousand, four hundred thirty-three".