122220212000191 has 2 divisors, whose sum is σ = 122220212000192. Its totient is φ = 122220212000190.

The previous prime is 122220212000189. The next prime is 122220212000221. The reversal of 122220212000191 is 191000212022221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122220212000191 - 2¹ = 122220212000189 is a prime.

Together with 122220212000189, 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 (122220212000291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61110106000095 + 61110106000096.

It is an arithmetic number, because the mean of its divisors is an integer number (61110106000096).

Almost surely, 2^{122220212000191} is an apocalyptic number.

122220212000191 is a deficient number, since it is larger than the sum of its proper divisors (1).

122220212000191 is an equidigital number, since it uses as much as digits as its factorization.

122220212000191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 122220212000191 in words is "one hundred twenty-two trillion, two hundred twenty billion, two hundred twelve million, one hundred ninety-one", and thus it is an aban number.