2012012020111 has 2 divisors, whose sum is σ = 2012012020112. Its totient is φ = 2012012020110.

The previous prime is 2012012020103. The next prime is 2012012020121. The reversal of 2012012020111 is 1110202102102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2012012020111 - 2³ = 2012012020103 is a prime.

It is a super-2 number, since 2×2012012020111² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2012012020091 and 2012012020100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012012020121) 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, 1006006010055 + 1006006010056.

It is an arithmetic number, because the mean of its divisors is an integer number (1006006010056).

Almost surely, 2^{2012012020111} is an apocalyptic number.

2012012020111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012012020111 is an equidigital number, since it uses as much as digits as its factorization.

2012012020111 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 13.

Adding to 2012012020111 its reverse (1110202102102), we get a palindrome (3122214122213).

The spelling of 2012012020111 in words is "two trillion, twelve billion, twelve million, twenty thousand, one hundred eleven".