212002320191 has 2 divisors, whose sum is σ = 212002320192. Its totient is φ = 212002320190.

The previous prime is 212002320139. The next prime is 212002320203. The reversal of 212002320191 is 191023200212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212002320191 - 2¹⁰ = 212002319167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212002320791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106001160095 + 106001160096.

It is an arithmetic number, because the mean of its divisors is an integer number (106001160096).

Almost surely, 2^212002320191 is an apocalyptic number.

212002320191 is a deficient number, since it is larger than the sum of its proper divisors (1).

212002320191 is an equidigital number, since it uses as much as digits as its factorization.

212002320191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 212002320191 in words is "two hundred twelve billion, two million, three hundred twenty thousand, one hundred ninety-one".