121112111001019 has 2 divisors, whose sum is σ = 121112111001020. Its totient is φ = 121112111001018.

The previous prime is 121112111001001. The next prime is 121112111001061. The reversal of 121112111001019 is 910100111211121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121112111001019 - 2⁵ = 121112111000987 is a prime.

It is a super-2 number, since 2×121112111001019² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121112111001719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60556055500509 + 60556055500510.

It is an arithmetic number, because the mean of its divisors is an integer number (60556055500510).

Almost surely, 2^{121112111001019} is an apocalyptic number.

121112111001019 is a deficient number, since it is larger than the sum of its proper divisors (1).

121112111001019 is an equidigital number, since it uses as much as digits as its factorization.

121112111001019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 22.

The spelling of 121112111001019 in words is "one hundred twenty-one trillion, one hundred twelve billion, one hundred eleven million, one thousand, nineteen".