211222310232191 has 2 divisors, whose sum is σ = 211222310232192. Its totient is φ = 211222310232190.

The previous prime is 211222310232187. The next prime is 211222310232229. The reversal of 211222310232191 is 191232013222112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211222310232191 - 2² = 211222310232187 is a prime.

It is a super-2 number, since 2×211222310232191² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211222310232121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105611155116095 + 105611155116096.

It is an arithmetic number, because the mean of its divisors is an integer number (105611155116096).

Almost surely, 2^{211222310232191} is an apocalyptic number.

211222310232191 is a deficient number, since it is larger than the sum of its proper divisors (1).

211222310232191 is an equidigital number, since it uses as much as digits as its factorization.

211222310232191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 211222310232191 in words is "two hundred eleven trillion, two hundred twenty-two billion, three hundred ten million, two hundred thirty-two thousand, one hundred ninety-one".