12213223221091 has 2 divisors, whose sum is σ = 12213223221092. Its totient is φ = 12213223221090.

The previous prime is 12213223220987. The next prime is 12213223221119. The reversal of 12213223221091 is 19012232231221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12213223221091 is a prime.

It is not a weakly prime, because it can be changed into another prime (12213223221491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106611610545 + 6106611610546.

It is an arithmetic number, because the mean of its divisors is an integer number (6106611610546).

Almost surely, 2^{12213223221091} is an apocalyptic number.

12213223221091 is a deficient number, since it is larger than the sum of its proper divisors (1).

12213223221091 is an equidigital number, since it uses as much as digits as its factorization.

12213223221091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 12213223221091 in words is "twelve trillion, two hundred thirteen billion, two hundred twenty-three million, two hundred twenty-one thousand, ninety-one".