12211212130233 has 4 divisors (see below), whose sum is σ = 16281616173648. Its totient is φ = 8140808086820.

The previous prime is 12211212130199. The next prime is 12211212130261. The reversal of 12211212130233 is 33203121211221.

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 a de Polignac number, because none of the positive numbers 2^k-12211212130233 is a prime.

It is a super-2 number, since 2×12211212130233² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12211212130133) 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, 2035202021703 + ... + 2035202021708.

It is an arithmetic number, because the mean of its divisors is an integer number (4070404043412).

Almost surely, 2^{12211212130233} is an apocalyptic number.

It is an amenable number.

12211212130233 is a deficient number, since it is larger than the sum of its proper divisors (4070404043415).

12211212130233 is an equidigital number, since it uses as much as digits as its factorization.

12211212130233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4070404043414.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 12211212130233 its reverse (33203121211221), we get a palindrome (45414333341454).

The spelling of 12211212130233 in words is "twelve trillion, two hundred eleven billion, two hundred twelve million, one hundred thirty thousand, two hundred thirty-three".