212001101201191 has 2 divisors, whose sum is σ = 212001101201192. Its totient is φ = 212001101201190.

The previous prime is 212001101201179. The next prime is 212001101201233. The reversal of 212001101201191 is 191102101100212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212001101201191 - 2²³ = 212001092812583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212001101208191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106000550600595 + 106000550600596.

It is an arithmetic number, because the mean of its divisors is an integer number (106000550600596).

Almost surely, 2^{212001101201191} is an apocalyptic number.

212001101201191 is a deficient number, since it is larger than the sum of its proper divisors (1).

212001101201191 is an equidigital number, since it uses as much as digits as its factorization.

212001101201191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 212001101201191 in words is "two hundred twelve trillion, one billion, one hundred one million, two hundred one thousand, one hundred ninety-one".