1012112120111 has 2 divisors, whose sum is σ = 1012112120112. Its totient is φ = 1012112120110.

The previous prime is 1012112120087. The next prime is 1012112120119. The reversal of 1012112120111 is 1110212112101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1012112120111 - 2¹⁴ = 1012112103727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012112120119) 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, 506056060055 + 506056060056.

It is an arithmetic number, because the mean of its divisors is an integer number (506056060056).

Almost surely, 2^{1012112120111} is an apocalyptic number.

1012112120111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012112120111 is an equidigital number, since it uses as much as digits as its factorization.

1012112120111 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 14.

Adding to 1012112120111 its reverse (1110212112101), we get a palindrome (2122324232212).

The spelling of 1012112120111 in words is "one trillion, twelve billion, one hundred twelve million, one hundred twenty thousand, one hundred eleven".