1111225440 has 192 divisors, whose sum is σ = 3872304576. Its totient is φ = 266084352.

The previous prime is 1111225439. The next prime is 1111225441. The reversal of 1111225440 is 445221111.

It is an interprime number because it is at equal distance from previous prime (1111225439) and next prime (1111225441).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111225441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 228474 + ... + 233286.

It is an arithmetic number, because the mean of its divisors is an integer number (20168253).

Almost surely, 2^1111225440 is an apocalyptic number.

1111225440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111225440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1936152288).

1111225440 is an abundant number, since it is smaller than the sum of its proper divisors (2761079136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1111225440 is a wasteful number, since it uses less digits than its factorization.

1111225440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4881 (or 4873 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1111225440 is about 33335.0482225540. The cubic root of 1111225440 is about 1035.7796920769.

Adding to 1111225440 its reverse (445221111), we get a palindrome (1556446551).

The spelling of 1111225440 in words is "one billion, one hundred eleven million, two hundred twenty-five thousand, four hundred forty".