122011202120191 has 2 divisors, whose sum is σ = 122011202120192. Its totient is φ = 122011202120190.

The previous prime is 122011202120189. The next prime is 122011202120231. The reversal of 122011202120191 is 191021202110221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122011202120191 - 2¹ = 122011202120189 is a prime.

Together with 122011202120189, 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 (122011202123191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61005601060095 + 61005601060096.

It is an arithmetic number, because the mean of its divisors is an integer number (61005601060096).

Almost surely, 2^{122011202120191} is an apocalyptic number.

122011202120191 is a deficient number, since it is larger than the sum of its proper divisors (1).

122011202120191 is an equidigital number, since it uses as much as digits as its factorization.

122011202120191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 25.

It can be divided in two parts, 122011 and 202120191, that added together give a palindrome (202242202).

The spelling of 122011202120191 in words is "one hundred twenty-two trillion, eleven billion, two hundred two million, one hundred twenty thousand, one hundred ninety-one".