121111100012099 has 2 divisors, whose sum is σ = 121111100012100. Its totient is φ = 121111100012098.

The previous prime is 121111100012093. The next prime is 121111100012107. The reversal of 121111100012099 is 990210001111121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121111100012099 - 2⁴ = 121111100012083 is a prime.

It is a super-2 number, since 2×121111100012099² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121111100012093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60555550006049 + 60555550006050.

It is an arithmetic number, because the mean of its divisors is an integer number (60555550006050).

Almost surely, 2^{121111100012099} is an apocalyptic number.

121111100012099 is a deficient number, since it is larger than the sum of its proper divisors (1).

121111100012099 is an equidigital number, since it uses as much as digits as its factorization.

121111100012099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 29.

The spelling of 121111100012099 in words is "one hundred twenty-one trillion, one hundred eleven billion, one hundred million, twelve thousand, ninety-nine".