12233320131221 has 4 divisors (see below), whose sum is σ = 13980937292832. Its totient is φ = 10485702969612.

The previous prime is 12233320131211. The next prime is 12233320131239. The reversal of 12233320131221 is 12213102333221.

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-12233320131221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12233320131211) 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, 873808580795 + ... + 873808580808.

It is an arithmetic number, because the mean of its divisors is an integer number (3495234323208).

Almost surely, 2^{12233320131221} is an apocalyptic number.

It is an amenable number.

12233320131221 is a deficient number, since it is larger than the sum of its proper divisors (1747617161611).

12233320131221 is an equidigital number, since it uses as much as digits as its factorization.

12233320131221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747617161610.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 12233320131221 its reverse (12213102333221), we get a palindrome (24446422464442).

The spelling of 12233320131221 in words is "twelve trillion, two hundred thirty-three billion, three hundred twenty million, one hundred thirty-one thousand, two hundred twenty-one".