120001220111 has 2 divisors, whose sum is σ = 120001220112. Its totient is φ = 120001220110.

The previous prime is 120001220057. The next prime is 120001220153. The reversal of 120001220111 is 111022100021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120001220111 - 2¹⁰ = 120001219087 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120001220092 and 120001220101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120001220011) 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, 60000610055 + 60000610056.

It is an arithmetic number, because the mean of its divisors is an integer number (60000610056).

Almost surely, 2^120001220111 is an apocalyptic number.

120001220111 is a deficient number, since it is larger than the sum of its proper divisors (1).

120001220111 is an equidigital number, since it uses as much as digits as its factorization.

120001220111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 120001220111 its reverse (111022100021), we get a palindrome (231023320132).

The spelling of 120001220111 in words is "one hundred twenty billion, one million, two hundred twenty thousand, one hundred eleven".