12021022220191 has 2 divisors, whose sum is σ = 12021022220192. Its totient is φ = 12021022220190.

The previous prime is 12021022220143. The next prime is 12021022220213. The reversal of 12021022220191 is 19102222012021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12021022220191 - 2¹¹ = 12021022218143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12021022220101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010511110095 + 6010511110096.

It is an arithmetic number, because the mean of its divisors is an integer number (6010511110096).

Almost surely, 2^{12021022220191} is an apocalyptic number.

12021022220191 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021022220191 is an equidigital number, since it uses as much as digits as its factorization.

12021022220191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 12021022220191 in words is "twelve trillion, twenty-one billion, twenty-two million, two hundred twenty thousand, one hundred ninety-one".