2212211111 has 8 divisors (see below), whose sum is σ = 2420162064. Its totient is φ = 2005400320.

The previous prime is 2212211107. The next prime is 2212211123. The reversal of 2212211111 is 1111122122.

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

It is not a de Polignac number, because 2212211111 - 2² = 2212211107 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 (2212211171) 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, 280976 + ... + 288741.

It is an arithmetic number, because the mean of its divisors is an integer number (302520258).

Almost surely, 2^2212211111 is an apocalyptic number.

2212211111 is a deficient number, since it is larger than the sum of its proper divisors (207950953).

2212211111 is a wasteful number, since it uses less digits than its factorization.

2212211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570081.

The product of its digits is 16, while the sum is 14.

The square root of 2212211111 is about 47034.1483498957. The cubic root of 2212211111 is about 1302.9933215546.

Adding to 2212211111 its reverse (1111122122), we get a palindrome (3323333233).

It can be divided in two parts, 22122111 and 11, that added together give a palindrome (22122122).

The spelling of 2212211111 in words is "two billion, two hundred twelve million, two hundred eleven thousand, one hundred eleven".