122111121211019 has 2 divisors, whose sum is σ = 122111121211020. Its totient is φ = 122111121211018.

The previous prime is 122111121210997. The next prime is 122111121211021. The reversal of 122111121211019 is 910112121111221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122111121211019 is a prime.

It is a super-2 number, since 2×122111121211019² (a number of 29 digits) contains 22 as substring.

Together with 122111121211021, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122111121211069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61055560605509 + 61055560605510.

It is an arithmetic number, because the mean of its divisors is an integer number (61055560605510).

Almost surely, 2^{122111121211019} is an apocalyptic number.

122111121211019 is a deficient number, since it is larger than the sum of its proper divisors (1).

122111121211019 is an equidigital number, since it uses as much as digits as its factorization.

122111121211019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 26.

The spelling of 122111121211019 in words is "one hundred twenty-two trillion, one hundred eleven billion, one hundred twenty-one million, two hundred eleven thousand, nineteen".