1111225056 has 48 divisors (see below), whose sum is σ = 2930102784. Its totient is φ = 368740224.

The previous prime is 1111225007. The next prime is 1111225069. The reversal of 1111225056 is 6505221111.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1111225056² = 2469642250164406272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4546 + ... + 47361.

It is an arithmetic number, because the mean of its divisors is an integer number (61043808).

Almost surely, 2^1111225056 is an apocalyptic number.

1111225056 is a gapful number since it is divisible by the number (16) 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 1111225056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1465051392).

1111225056 is an abundant number, since it is smaller than the sum of its proper divisors (1818877728).

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

1111225056 is a wasteful number, since it uses less digits than its factorization.

1111225056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52143 (or 52135 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 1111225056 is about 33335.0424628498. The cubic root of 1111225056 is about 1035.7795727673.

Adding to 1111225056 its reverse (6505221111), we get a palindrome (7616446167).

The spelling of 1111225056 in words is "one billion, one hundred eleven million, two hundred twenty-five thousand, fifty-six".