2231222111 has 8 divisors (see below), whose sum is σ = 2330809344. Its totient is φ = 2131849720.

The previous prime is 2231222107. The next prime is 2231222159. The reversal of 2231222111 is 1112221322.

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 2231222111 - 2² = 2231222107 is a prime.

It is a super-3 number, since 3×2231222111³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2231222111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231222011) 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, 32291 + ... + 74196.

It is an arithmetic number, because the mean of its divisors is an integer number (291351168).

Almost surely, 2^2231222111 is an apocalyptic number.

2231222111 is a deficient number, since it is larger than the sum of its proper divisors (99587233).

2231222111 is a wasteful number, since it uses less digits than its factorization.

2231222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107421.

The product of its digits is 96, while the sum is 17.

The square root of 2231222111 is about 47235.8138598246. The cubic root of 2231222111 is about 1306.7151761704.

Adding to 2231222111 its reverse (1112221322), we get a palindrome (3343443433).

The spelling of 2231222111 in words is "two billion, two hundred thirty-one million, two hundred twenty-two thousand, one hundred eleven".