212222110111 has 16 divisors (see below), whose sum is σ = 233841248928. Its totient is φ = 190991232000.

The previous prime is 212222110109. The next prime is 212222110153. The reversal of 212222110111 is 111011222212.

It is a cyclic number.

It is not a de Polignac number, because 212222110111 - 2¹ = 212222110109 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 (212222110181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13938775 + ... + 13953991.

It is an arithmetic number, because the mean of its divisors is an integer number (14615078058).

Almost surely, 2^212222110111 is an apocalyptic number.

212222110111 is a deficient number, since it is larger than the sum of its proper divisors (21619138817).

212222110111 is a wasteful number, since it uses less digits than its factorization.

212222110111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27882.

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

Adding to 212222110111 its reverse (111011222212), we get a palindrome (323233332323).

The spelling of 212222110111 in words is "two hundred twelve billion, two hundred twenty-two million, one hundred ten thousand, one hundred eleven".