2222112211111 has 8 divisors (see below), whose sum is σ = 2518993599920. Its totient is φ = 1943223633792.

The previous prime is 2222112211063. The next prime is 2222112211117. The reversal of 2222112211111 is 1111122112222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2222112211111 - 2²⁷ = 2221977993383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222112211117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4498202610 + ... + 4498203103.

It is an arithmetic number, because the mean of its divisors is an integer number (314874199990).

Almost surely, 2^{2222112211111} is an apocalyptic number.

2222112211111 is a deficient number, since it is larger than the sum of its proper divisors (296881388809).

2222112211111 is a wasteful number, since it uses less digits than its factorization.

2222112211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8996405745.

The product of its digits is 64, while the sum is 19.

Adding to 2222112211111 its reverse (1111122112222), we get a palindrome (3333234323333).

The spelling of 2222112211111 in words is "two trillion, two hundred twenty-two billion, one hundred twelve million, two hundred eleven thousand, one hundred eleven".