1144222111 has 8 divisors (see below), whose sum is σ = 1211935824. Its totient is φ = 1076553600.

The previous prime is 1144222109. The next prime is 1144222117. The reversal of 1144222111 is 1112224411.

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 1144222111 - 2¹ = 1144222109 is a prime.

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 (1144222117) 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, 50536 + ... + 69586.

It is an arithmetic number, because the mean of its divisors is an integer number (151491978).

Almost surely, 2^1144222111 is an apocalyptic number.

1144222111 is a deficient number, since it is larger than the sum of its proper divisors (67713713).

1144222111 is a wasteful number, since it uses less digits than its factorization.

1144222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22601.

The product of its digits is 128, while the sum is 19.

The square root of 1144222111 is about 33826.3523159090. The cubic root of 1144222111 is about 1045.9319878590.

Adding to 1144222111 its reverse (1112224411), we get a palindrome (2256446522).

The spelling of 1144222111 in words is "one billion, one hundred forty-four million, two hundred twenty-two thousand, one hundred eleven".