2012102211111 has 24 divisors (see below), whose sum is σ = 2747161186416. Its totient is φ = 1309959705600.

The previous prime is 2012102211083. The next prime is 2012102211137. The reversal of 2012102211111 is 1111122012102.

It is a happy number.

It is not a de Polignac number, because 2012102211111 - 2¹³ = 2012102202919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012102211151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32213511 + ... + 32275911.

It is an arithmetic number, because the mean of its divisors is an integer number (114465049434).

Almost surely, 2^{2012102211111} is an apocalyptic number.

2012102211111 is a deficient number, since it is larger than the sum of its proper divisors (735058975305).

2012102211111 is an equidigital number, since it uses as much as digits as its factorization.

2012102211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68303 (or 68260 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2012102211111 its reverse (1111122012102), we get a palindrome (3123224223213).

The spelling of 2012102211111 in words is "two trillion, twelve billion, one hundred two million, two hundred eleven thousand, one hundred eleven".