212201200022191 has 2 divisors, whose sum is σ = 212201200022192. Its totient is φ = 212201200022190.

The previous prime is 212201200022183. The next prime is 212201200022221. The reversal of 212201200022191 is 191220002102212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212201200022191 - 2³ = 212201200022183 is a prime.

It is a super-3 number, since 3×212201200022191³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212201200002191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106100600011095 + 106100600011096.

It is an arithmetic number, because the mean of its divisors is an integer number (106100600011096).

Almost surely, 2^{212201200022191} is an apocalyptic number.

212201200022191 is a deficient number, since it is larger than the sum of its proper divisors (1).

212201200022191 is an equidigital number, since it uses as much as digits as its factorization.

212201200022191 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 212201200022191 in words is "two hundred twelve trillion, two hundred one billion, two hundred million, twenty-two thousand, one hundred ninety-one".