2012222111 has 4 divisors (see below), whose sum is σ = 2031758352. Its totient is φ = 1992685872.

The previous prime is 2012222089. The next prime is 2012222141. The reversal of 2012222111 is 1112222102.

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

It is a cyclic number.

It is not a de Polignac number, because 2012222111 - 2¹⁸ = 2011959967 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 (2012222141) 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, 9767966 + ... + 9768171.

It is an arithmetic number, because the mean of its divisors is an integer number (507939588).

Almost surely, 2^2012222111 is an apocalyptic number.

2012222111 is a deficient number, since it is larger than the sum of its proper divisors (19536241).

2012222111 is a wasteful number, since it uses less digits than its factorization.

2012222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19536240.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2012222111 is about 44857.7987756867. The cubic root of 2012222111 is about 1262.4823220869.

Adding to 2012222111 its reverse (1112222102), we get a palindrome (3124444213).

Subtracting from 2012222111 its reverse (1112222102), we obtain a palindrome (900000009).

The spelling of 2012222111 in words is "two billion, twelve million, two hundred twenty-two thousand, one hundred eleven".