11121210110999 has 2 divisors, whose sum is σ = 11121210111000. Its totient is φ = 11121210110998.

The previous prime is 11121210110957. The next prime is 11121210111023. The reversal of 11121210110999 is 99901101212111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11121210110999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11121210110909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560605055499 + 5560605055500.

It is an arithmetic number, because the mean of its divisors is an integer number (5560605055500).

Almost surely, 2^{11121210110999} is an apocalyptic number.

11121210110999 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121210110999 is an equidigital number, since it uses as much as digits as its factorization.

11121210110999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 38.

The spelling of 11121210110999 in words is "eleven trillion, one hundred twenty-one billion, two hundred ten million, one hundred ten thousand, nine hundred ninety-nine".