2212212111111 has 20 divisors (see below), whose sum is σ = 3499054452432. Its totient is φ = 1388054657088.

The previous prime is 2212212111107. The next prime is 2212212111119. The reversal of 2212212111111 is 1111112122122.

It is a happy number.

2212212111111 is a `hidden beast` number, since 221 + 221 + 2 + 111 + 111 = 666.

It is not a de Polignac number, because 2212212111111 - 2² = 2212212111107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212212111119) 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 in 19 ways as a sum of consecutive naturals, for example, 803270995 + ... + 803273748.

Almost surely, 2^{2212212111111} is an apocalyptic number.

2212212111111 is a deficient number, since it is larger than the sum of its proper divisors (1286842341321).

2212212111111 is a wasteful number, since it uses less digits than its factorization.

2212212111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606544772 (or 1606544763 counting only the distinct ones).

The product of its digits is 32, while the sum is 18.

Adding to 2212212111111 its reverse (1111112122122), we get a palindrome (3323324233233).

It can be divided in two parts, 221221 and 2111111, that added together give a palindrome (2332332).

The spelling of 2212212111111 in words is "two trillion, two hundred twelve billion, two hundred twelve million, one hundred eleven thousand, one hundred eleven".