111224457889 has 4 divisors (see below), whose sum is σ = 111227582356. Its totient is φ = 111221333424.

The previous prime is 111224457871. The next prime is 111224457901. The reversal of 111224457889 is 988754422111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 988754422111 = 81401 ⋅12146711.

It can be written as a sum of positive squares in 2 ways, for example, as 15174051489 + 96050406400 = 123183^2 + 309920^2 .

It is a cyclic number.

It is not a de Polignac number, because 111224457889 - 2⁷ = 111224457761 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (111224457829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1508214 + ... + 1580239.

It is an arithmetic number, because the mean of its divisors is an integer number (27806895589).

Almost surely, 2^111224457889 is an apocalyptic number.

It is an amenable number.

111224457889 is a deficient number, since it is larger than the sum of its proper divisors (3124467).

111224457889 is an equidigital number, since it uses as much as digits as its factorization.

111224457889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3124466.

The product of its digits is 1290240, while the sum is 52.

The spelling of 111224457889 in words is "one hundred eleven billion, two hundred twenty-four million, four hundred fifty-seven thousand, eight hundred eighty-nine".