121101120110111 has 2 divisors, whose sum is σ = 121101120110112. Its totient is φ = 121101120110110.

The previous prime is 121101120110041. The next prime is 121101120110147. The reversal of 121101120110111 is 111011021101121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121101120110111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121101120110611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60550560055055 + 60550560055056.

It is an arithmetic number, because the mean of its divisors is an integer number (60550560055056).

Almost surely, 2^{121101120110111} is an apocalyptic number.

121101120110111 is a deficient number, since it is larger than the sum of its proper divisors (1).

121101120110111 is an equidigital number, since it uses as much as digits as its factorization.

121101120110111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 121101120110111 its reverse (111011021101121), we get a palindrome (232112141211232).

The spelling of 121101120110111 in words is "one hundred twenty-one trillion, one hundred one billion, one hundred twenty million, one hundred ten thousand, one hundred eleven".