12211302533 has 4 divisors (see below), whose sum is σ = 12211852800. Its totient is φ = 12210752268.

The previous prime is 12211302517. The next prime is 12211302539. The reversal of 12211302533 is 33520311221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12211302533 - 2⁴ = 12211302517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12211302499 and 12211302508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211302539) 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, 240383 + ... + 286716.

It is an arithmetic number, because the mean of its divisors is an integer number (3052963200).

Almost surely, 2^12211302533 is an apocalyptic number.

It is an amenable number.

12211302533 is a deficient number, since it is larger than the sum of its proper divisors (550267).

12211302533 is an equidigital number, since it uses as much as digits as its factorization.

12211302533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550266.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 12211302533 its reverse (33520311221), we get a palindrome (45731613754).

The spelling of 12211302533 in words is "twelve billion, two hundred eleven million, three hundred two thousand, five hundred thirty-three".