122120191867 has 2 divisors, whose sum is σ = 122120191868. Its totient is φ = 122120191866.

The previous prime is 122120191819. The next prime is 122120191889. The reversal of 122120191867 is 768191021221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122120191867 - 2¹¹ = 122120189819 is a prime.

It is not a weakly prime, because it can be changed into another prime (122120191807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61060095933 + 61060095934.

It is an arithmetic number, because the mean of its divisors is an integer number (61060095934).

Almost surely, 2^122120191867 is an apocalyptic number.

122120191867 is a deficient number, since it is larger than the sum of its proper divisors (1).

122120191867 is an equidigital number, since it uses as much as digits as its factorization.

122120191867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 40.

The spelling of 122120191867 in words is "one hundred twenty-two billion, one hundred twenty million, one hundred ninety-one thousand, eight hundred sixty-seven".