120212123111 has 2 divisors, whose sum is σ = 120212123112. Its totient is φ = 120212123110.

The previous prime is 120212123099. The next prime is 120212123189. The reversal of 120212123111 is 111321212021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120212123111 - 2¹⁰ = 120212122087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120212123111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120212129111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60106061555 + 60106061556.

It is an arithmetic number, because the mean of its divisors is an integer number (60106061556).

Almost surely, 2^120212123111 is an apocalyptic number.

120212123111 is a deficient number, since it is larger than the sum of its proper divisors (1).

120212123111 is an equidigital number, since it uses as much as digits as its factorization.

120212123111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 120212123111 its reverse (111321212021), we get a palindrome (231533335132).

The spelling of 120212123111 in words is "one hundred twenty billion, two hundred twelve million, one hundred twenty-three thousand, one hundred eleven".