2012010111 has 56 divisors (see below), whose sum is σ = 3285558000. Its totient is φ = 1226679552.

The previous prime is 2012010101. The next prime is 2012010151. The reversal of 2012010111 is 1110102102.

It is a happy number.

It is not a de Polignac number, because 2012010111 - 2⁷ = 2012009983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2012010093 and 2012010102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012010101) 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 in 55 ways as a sum of consecutive naturals, for example, 399175 + ... + 404183.

Almost surely, 2^2012010111 is an apocalyptic number.

2012010111 is a deficient number, since it is larger than the sum of its proper divisors (1273547889).

2012010111 is an equidigital number, since it uses as much as digits as its factorization.

2012010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5075 (or 5060 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 2012010111 is about 44855.4356906719. The cubic root of 2012010111 is about 1262.4379837655.

Adding to 2012010111 its reverse (1110102102), we get a palindrome (3122112213).

The spelling of 2012010111 in words is "two billion, twelve million, ten thousand, one hundred eleven".