116222191 has 2 divisors, whose sum is σ = 116222192. Its totient is φ = 116222190.

The previous prime is 116222189. The next prime is 116222219. The reversal of 116222191 is 191222611.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 116222191 - 2¹ = 116222189 is a prime.

Together with 116222189, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116222891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58111095 + 58111096.

It is an arithmetic number, because the mean of its divisors is an integer number (58111096).

Almost surely, 2^116222191 is an apocalyptic number.

116222191 is a deficient number, since it is larger than the sum of its proper divisors (1).

116222191 is an equidigital number, since it uses as much as digits as its factorization.

116222191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 25.

The square root of 116222191 is about 10780.6396377952. The cubic root of 116222191 is about 488.0110840782.

The spelling of 116222191 in words is "one hundred sixteen million, two hundred twenty-two thousand, one hundred ninety-one".