1131440222111 has 24 divisors (see below), whose sum is σ = 1238420108880. Its totient is φ = 1030090141440.

The previous prime is 1131440222083. The next prime is 1131440222113. The reversal of 1131440222111 is 1112220441311.

It is a de Polignac number, because none of the positive numbers 2^k-1131440222111 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 (1131440222113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41466005 + ... + 41493281.

It is an arithmetic number, because the mean of its divisors is an integer number (51600837870).

Almost surely, 2^{1131440222111} is an apocalyptic number.

1131440222111 is a deficient number, since it is larger than the sum of its proper divisors (106979886769).

1131440222111 is a wasteful number, since it uses less digits than its factorization.

1131440222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29895 (or 29864 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 1131440222111 its reverse (1112220441311), we get a palindrome (2243660663422).

The spelling of 1131440222111 in words is "one trillion, one hundred thirty-one billion, four hundred forty million, two hundred twenty-two thousand, one hundred eleven".