2012101222111 has 4 divisors (see below), whose sum is σ = 2058894273832. Its totient is φ = 1965308170392.

The previous prime is 2012101222093. The next prime is 2012101222129. The reversal of 2012101222111 is 1112221012102.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2012101222093) and next prime (2012101222129).

It is a cyclic number.

It is not a de Polignac number, because 2012101222111 - 2²³ = 2012092833503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012101222141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23396525796 + ... + 23396525881.

It is an arithmetic number, because the mean of its divisors is an integer number (514723568458).

Almost surely, 2^{2012101222111} is an apocalyptic number.

2012101222111 is a deficient number, since it is larger than the sum of its proper divisors (46793051721).

2012101222111 is an equidigital number, since it uses as much as digits as its factorization.

2012101222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46793051720.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2012101222111 its reverse (1112221012102), we get a palindrome (3124322234213).

The spelling of 2012101222111 in words is "two trillion, twelve billion, one hundred one million, two hundred twenty-two thousand, one hundred eleven".