120100211111 has 2 divisors, whose sum is σ = 120100211112. Its totient is φ = 120100211110.

The previous prime is 120100211039. The next prime is 120100211113. The reversal of 120100211111 is 111112001021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120100211111 - 2¹⁴ = 120100194727 is a prime.

Together with 120100211113, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 120100211092 and 120100211101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120100211113) 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, 60050105555 + 60050105556.

It is an arithmetic number, because the mean of its divisors is an integer number (60050105556).

Almost surely, 2^120100211111 is an apocalyptic number.

120100211111 is a deficient number, since it is larger than the sum of its proper divisors (1).

120100211111 is an equidigital number, since it uses as much as digits as its factorization.

120100211111 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 11.

Adding to 120100211111 its reverse (111112001021), we get a palindrome (231212212132).

The spelling of 120100211111 in words is "one hundred twenty billion, one hundred million, two hundred eleven thousand, one hundred eleven".