121112011212911 has 2 divisors, whose sum is σ = 121112011212912. Its totient is φ = 121112011212910.

The previous prime is 121112011212901. The next prime is 121112011212949. The reversal of 121112011212911 is 119212110211121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121112011212911 - 2¹⁸ = 121112010950767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121112011212901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60556005606455 + 60556005606456.

It is an arithmetic number, because the mean of its divisors is an integer number (60556005606456).

Almost surely, 2^{121112011212911} is an apocalyptic number.

121112011212911 is a deficient number, since it is larger than the sum of its proper divisors (1).

121112011212911 is an equidigital number, since it uses as much as digits as its factorization.

121112011212911 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 121112011212911 in words is "one hundred twenty-one trillion, one hundred twelve billion, eleven million, two hundred twelve thousand, nine hundred eleven".