120111011221211 has 2 divisors, whose sum is σ = 120111011221212. Its totient is φ = 120111011221210.

The previous prime is 120111011221193. The next prime is 120111011221219. The reversal of 120111011221211 is 112122110111021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120111011221211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120111011221211.

It is not a weakly prime, because it can be changed into another prime (120111011221219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60055505610605 + 60055505610606.

It is an arithmetic number, because the mean of its divisors is an integer number (60055505610606).

Almost surely, 2^{120111011221211} is an apocalyptic number.

120111011221211 is a deficient number, since it is larger than the sum of its proper divisors (1).

120111011221211 is an equidigital number, since it uses as much as digits as its factorization.

120111011221211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 120111011221211 its reverse (112122110111021), we get a palindrome (232233121332232).

The spelling of 120111011221211 in words is "one hundred twenty trillion, one hundred eleven billion, eleven million, two hundred twenty-one thousand, two hundred eleven".