111212110121039 has 2 divisors, whose sum is σ = 111212110121040. Its totient is φ = 111212110121038.

The previous prime is 111212110121027. The next prime is 111212110121053. The reversal of 111212110121039 is 930121011212111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111212110121039 - 2⁴ = 111212110121023 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 111212110120999 and 111212110121017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111212110121009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55606055060519 + 55606055060520.

It is an arithmetic number, because the mean of its divisors is an integer number (55606055060520).

Almost surely, 2^{111212110121039} is an apocalyptic number.

111212110121039 is a deficient number, since it is larger than the sum of its proper divisors (1).

111212110121039 is an equidigital number, since it uses as much as digits as its factorization.

111212110121039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 26.

The spelling of 111212110121039 in words is "one hundred eleven trillion, two hundred twelve billion, one hundred ten million, one hundred twenty-one thousand, thirty-nine".